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BEGIN:VEVENT
SUMMARY:Improvements of the target lifetime in the RHIC Polarimeter*
DTSTART;VALUE=DATE-TIME:20161115T093000Z
DTEND;VALUE=DATE-TIME:20161115T100000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-977@indico.tlabs.ac.za
DESCRIPTION:Speakers: Dannie Steski (Brookhaven National Laboratory)\nThe 
 Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (
 BNL) is the only collider in the world to collide polarized protons. It is
  critical to the experimental program that the polarization of the proton 
 beam is measured in RHIC. This is accomplished with the Coulomb Nuclear In
 terference (CNI) polarimeter. The targets used in the RHIC CNI polarimeter
  are 50 nm thick\, 25 mm long and <10 m wide. As the beam intensity in 
 RHIC has increased and the beam size has decreased\, the lifetime of these
  targets has decreased dramatically. During the 2013 polarized proton expe
 rimental run\, the targets needed to be replaced twice. This resulted in a
 dditional work and lost beam time. Before the 2015 experimental run\, meta
 l shields were installed around the ends of the targets which greatly impr
 oved the target lifetime. The results from the 2015 and plans for the 2017
  experimental run will be discussed.\n\n* This work is performed under the
  auspices of the U.S. Department of Energy\n\nhttps://indico.tlabs.ac.za/e
 vent/65/contributions/977/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/977/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Plenary 1:  Separation and chemical processing of stable and radio
 active isotopes
DTSTART;VALUE=DATE-TIME:20161114T073000Z
DTEND;VALUE=DATE-TIME:20161114T090000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-935@indico.tlabs.ac.za
DESCRIPTION:Speakers: Dorothea Schumann (Paul Scherrer Institute)\nhttps:/
 /indico.tlabs.ac.za/event/65/contributions/935/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/935/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ca-48 targets – home and abroad!
DTSTART;VALUE=DATE-TIME:20161115T090000Z
DTEND;VALUE=DATE-TIME:20161115T093000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-936@indico.tlabs.ac.za
DESCRIPTION:Speakers: John Greene (Argonne National Laboratory)\nUsing the
  method of reduction/distillation1\, one can prepare high purity films of 
 robust and ductile calcium metal for use as targets in nuclear physics exp
 eriments. These targets however are extremely air-sensitive and procedures
  must be developed for their handling and use without exposure to air2. In
  addition\, the low natural abundance of the isotope Ca-48 provides an inc
 reased incentive for the best efficiencies available in their preparation.
  In most instances the Ca-48 target will be used on a carrier foil (backin
 g) and a thin covering of similar material is employed to further reduce r
 e-oxidation. Un-backed metallic targets are rarely produced due to these c
 oncerns. Here we describe the preparation of Ca-48 targets employing BOTH 
 a thin gold backing and covering for use here at home\, Argonne National L
 aboratory (ANL)\, as well as abroad\, to Osaka University. For the shipmen
 ts overseas\, much care and preparation were necessary to insure a safe ar
 rival and that the targets remained un-oxidized.     \n\n\n1Ed Kobisk\, Re
 port AERE-R 5097 (1965) 103\n2J.D.Stinson\, INTDS Proceedings (1974) 100\n
 \nhttps://indico.tlabs.ac.za/event/65/contributions/936/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/936/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Targets for studies of the medical radioisotopes production with 
 α and p/d beams
DTSTART;VALUE=DATE-TIME:20161117T080000Z
DTEND;VALUE=DATE-TIME:20161117T083000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-938@indico.tlabs.ac.za
DESCRIPTION:Speakers: Anna Stolarz (Heavy Ion Laboratory\, University of W
 arsaw)\nTargets for studies of the medical radioisotopes production with 
 α and p/d beams\n\nStolarz Anna 1) for teams of \n\n1. Heavy Ion Laborato
 ry\, University of Warsaw\, Warszawa\, Poland\n2. Institute of Physics\, U
 niversity of Silesia\, Katowice\, Poland\n3. Biological and Chemical Resea
 rch Centre\, University of Warsaw\, Warszawa\, Poland\n4. Institute of the
  Nuclear Chemistry and Technology\, Warszawa\, Poland\n\n\nThe studies on 
 the production of the medically interested radioisotopes are carried at th
 e HIL UW with alpha beam provided by the heavy ion cyclotron U200P K=160\,
  and with proton beams provided by the medical p/d high current 16/8 MeV P
 ETtrace cyclotron\, both located at HIL UW and by the cyclotron C-30 at Ś
 wierk\, National Centre for Nuclear Research.\n\nThe research quantities o
 f the medical radioisotopes are produced by irradiation of the targets mad
 e of 100Mo\, natural and isotopicaly enriched Ca\, natGe\, natBi. \nThe na
 tBi targets are used for the production of 211At in reaction with α-parti
 cle internal beam. The alpha beam is ussed as well for the production of m
 edically atractive 43\,44g\,mSc isotopes in reaction with Ca\, using mainl
 y targets in form of calcium carbonate.\n\nSamples irradiation by the inte
 rnal α-particle beam delivered by U200P requires special shape of the tar
 gets. The procedure used for their preparation will be presented.\nThe irr
 adiations with proton beam are performed using external lines. Preliminary
  studies of the thermal aspects related to the calcium carbonate targets i
 rradiated at PETtrace proton machine will be discused as well.\n\nhttps://
 indico.tlabs.ac.za/event/65/contributions/938/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/938/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Production of ​9​Be targets for nuclear physics experiments
DTSTART;VALUE=DATE-TIME:20161115T103000Z
DTEND;VALUE=DATE-TIME:20161115T110000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-939@indico.tlabs.ac.za
DESCRIPTION:Speakers: Daniel José Marín-Lámbarri (iThemba LABS/ Univers
 ity of the Western Cape)\, ntombizonke kheswa (iThemba LABS)\nSelf-support
 ing beryllium (​9​Be) targets were produced by mechanical rolling meth
 od in which a double pack technique was implemented. Targets were used for
  the investigation of the low-lying excitation energy region in ​9​Be 
 through the ​9​Be(​3​He\,t)​9​B reaction at the K600 spectrome
 ter\, at iThemba LABS facility. Beryllium is a semimetal in nature and thi
 s makes it hard to deform by rolling or vacuum evaporate as a self-support
 ing target. Therefore heat treatment was needed to avoid brittleness and b
 reakage of the material during rolling process. A description is given on 
 how beryllium targets were manufactured. \n\nKeywords: Rolling method\, an
 nealing\, vacuum atmosphere\, thickness\, target\n\nhttps://indico.tlabs.a
 c.za/event/65/contributions/939/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/939/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fabrication and characterization of thin isotopic 144\,154 Sm targ
 ets sandwiched between carbon layers
DTSTART;VALUE=DATE-TIME:20161114T140000Z
DTEND;VALUE=DATE-TIME:20161114T143000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-940@indico.tlabs.ac.za
DESCRIPTION:Speakers: Ruchi Mahajan (Department of Physics\, Panjab Univer
 sity Chandigarh)\nIsotopic thin samarium (Sm) targets of 150-200 μg/cm2 t
 hickness have been fabricated in high vacuum(HV) environment by thermal ev
 aporation method on carbon (C) backing of 20-25 μg/cm2 thickness at Inter
  University Accelerator Centre (IUAC)\, New Delhi. Preparation and storage
  of lanthanide targets is quite challenging task as they are chemically ve
 ry active. A very thin layer of C of thickness 5-10 μg/cm2 has been evapo
 rated on Sm using electron-gun bombardment technique to prevent it from ox
 idation. Set of more than twenty 144Sm and 154Sm targets each were success
 fully prepared in the target laboratory of IUAC\, New Delhi. Characterizat
 ion techniques like Rutherford back scattering (RBS)\, Alpha energy loss t
 echnique and Energy dispersive X-ray fluorescence (EDXRF) have been used t
 o access the purity\, thickness and elemental composition of targets. Thic
 kness of these targets measured by using different techniques are in well 
 agreement with each other. These targets have been successfully used in th
 ree nuclear physics experiments using the National Array of Neutron Detect
 ors (NAND)\, HYbrid Recoil Mass Analyzer (HYRA) and General Purpose Scatte
 ring chamber (GPSC) at IUAC.\n\nhttps://indico.tlabs.ac.za/event/65/contri
 butions/940/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/940/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Making low vapour pressure targets:  organometallic and metallocen
 es as the precursors.
DTSTART;VALUE=DATE-TIME:20161115T073000Z
DTEND;VALUE=DATE-TIME:20161115T080000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-941@indico.tlabs.ac.za
DESCRIPTION:Speakers: ntombizonke kheswa (iThemba LABS)\nLow vapour pressu
 re target materials are a challenge to manufacture\, irrespective of wheth
 er they are thin or thick. This challenge gets enhanced when target materi
 als with thickness below 500 µg/cm2 are required as they are limitations 
 in methods available to prepare them. For example\, some materials are not
  malleable enough to work on (roll)\, like B\, Be\, W\, Si etc. In this co
 ntribution\, a method will be described in details where an organometallic
  approach is used to synthesise high vapour pressure targets in their enri
 ched isotopic form. This production method also is relevant for other appl
 ications such as exotic beam production at iThemba LABS. \nKeywords: organ
 ometallic\, metallocene\, cyclopentadiene\, sandwich structures.\n\nhttps:
 //indico.tlabs.ac.za/event/65/contributions/941/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/941/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Neutron tunneling in nanostructured systems: isotopical effect
DTSTART;VALUE=DATE-TIME:20161118T090000Z
DTEND;VALUE=DATE-TIME:20161118T093000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-942@indico.tlabs.ac.za
DESCRIPTION:Speakers: Aphiwe Matiwane (iThemba LABS)\nThe thin films techn
 ology has become more and more attractive for researchers. The interest is
  based on their potential applications in laser materials\, solar cells et
 c. Thin films can be prepared by various method such as spray pyrolysis\, 
 pulsed laser etc. Enriched isotopes thin films of nickel will be deposited
  on silicon substrate as sandwich multilayers by using vacuum physical vap
 or deposition system equipped with electron beam. Thereafter\, these isoto
 pic nickel thin films are intended for use as Fabry-Perot resonators to ob
 serve the tunneling phenomenon of neutron wave-particles. If successful\, 
 this would be the proof of engineering novel neutron optics devices for ne
 utron research reactor based completely on isotope nanostructures. The mul
 tilayered isotopically enriched nickel thin films will be characterized us
 ing XRD\, AFM\, X-ray reflectometry and grazing incidence neutron reflecto
 metry\nKeywords: Isotope\, Neutron tunneling\, X-ray reflectometry\, Fabry
 -Perot resonator\n\nhttps://indico.tlabs.ac.za/event/65/contributions/942/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/942/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mixed Californium Electrodeposition Target Update
DTSTART;VALUE=DATE-TIME:20161114T123000Z
DTEND;VALUE=DATE-TIME:20161114T130000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-945@indico.tlabs.ac.za
DESCRIPTION:Speakers: Rose Boll (Oak Ridge National Laboratory)\nUnique de
 cay-enriched 251Cf material was recovered from aged 252Cf sources stored a
 t Oak Ridge National Laboratory\, purified\, and electrodeposited onto thi
 n Ti foils for use as targets in the study of Cf+48Ca fusion-evaporation r
 eaction. The electrodepostion unit was designed with the assembled segment
  (Ti foil and frame) fitting into the side of the deposition well.  Silico
 n gaskets were placed on both sides of the well with the front edge of the
  segment up against the gasket to create a liquid-tight seal.  The Cf was 
 electrodeposited using the isobutyl alcohol method\, which was conducted a
 t 0.3 mA/cm2 for 4 hours with the voltage limited to 150 V. Twelve target 
 segments were produced with an average areal deposition of 309 μg/cm2 of 
 mixed Cf.  The segments were shipped to the Joint Institute for Nuclear Re
 search in Dubna\, Russia\, and assembled onto a target wheel.  Irradiation
  of the target initiated in the U-400 M heavy ion cyclotron using a beam o
 f 48Ca ions on October 1\, 2015. One decay chain of 294118 was observed du
 ring the first three months of irradiations. The alpha rate from target ma
 terial was monitored at the final focus of the Dubna Gas Filled Recoil Sep
 arator (DGFRS) during the experiment. Alpha spectra were evaluated for eac
 h target segment on a regular basis. The stability of alpha rate over time
  indicated that the Cf content in the target was not changing.  Typically 
 broad alpha spectra are observed in the first measurements of the target b
 ut\, after some beam dose\, the spectra become narrower indicating possibl
 e burn out of organic content. Similar alpha spectra behavior was observed
  with the mixed 251Cf targets\; however\, during the experiment an unexpec
 ted increase in the low-energy tail of the alpha spectra developed over ti
 me. Visual inspection of the target indicated a film covering part of the 
 surface of the electrodeposited material.  This presentation will address 
 the current status of the investigations into the identity of the film and
  the remake of the mixed Cf target segments.\n\nhttps://indico.tlabs.ac.za
 /event/65/contributions/945/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/945/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Design of a thin internal 12C target for antiproton interactions i
 nside the HESR ring at FAIR
DTSTART;VALUE=DATE-TIME:20161117T093000Z
DTEND;VALUE=DATE-TIME:20161117T100000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-946@indico.tlabs.ac.za
DESCRIPTION:Speakers: Hannan Younis (Comsats Institute of Information Tech
 nology Islamabad)\nH. Younis1\, F.Iazzi2\, F.Balestra2\, R.Introzzi2\, A. 
 Lavagno2\, M.Ajaz3 and Kamal Hussain Khan4\nAbstract: In the future comple
 x FAIR (Facility for Antiproton and Ion Research) experiments\, the HESR (
 High Energy Storage Ring) will provide antiprotons as projectiles in the m
 omentum range of 1.5-15 GeV/c with a resolution up to 10-5. These antiprot
 on projectiles are helpful in study of charm and strangeness of Double hyp
 er nuclei physics [1]. The FAIR project will supply intense beam of antipr
 otons from the HESR ring. For carrying all these nuclear reactions it is e
 ssential to insert an internal target in HESR.  By inserting a nuclear tar
 get inside the antiproton ring will leads into two main drawbacks: a large
  background on the detectors due the overwhelming amount of annihilations 
 and a strong depletion of the beam due to the all the hadronic and coulomb
  interactions of the antiprotons with 12C nuclei [2]. An appropriate targe
 t with precise thickness can minimize these undesirable effects. In this r
 egard a thin diamond target with two-wire shape prototype have been analyz
 ed [3]. The wire shaped diamond target has been obtained using femto-edged
  laser. Mechanical properties of nuclear target like hardness\, purity and
  thickness of the target have been analyzed by using back scattering techn
 ique. For this purpose the target is irradiated with 1.5 MeV beams of prot
 ons. Further this prototype has been submitted to micro-Raman Spectroscopy
  in order check the phase change in the target.  The results show performa
 nces\, which satisfy the experimental requirements. \nKeywords:  Double Hy
 per-nuclei\; Diamond Target\; Femto-edged Laser\; Ion Storage ring\; micro
 -Raman Spectroscopy\n Reference:\n[1] F. Ferro et al. 2007 Nucl. Phys. A 7
 89 209\n[2] H. Younis et al. 2013 J. Radioanal. Nucl. Chem. 299\, issue 2 
 951\n[3] H. Younis et al. 2014 JINST 9 P04012\n\nhttps://indico.tlabs.ac.z
 a/event/65/contributions/946/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/946/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Plenary 3: UCx target preparations and characterizations
DTSTART;VALUE=DATE-TIME:20161116T063000Z
DTEND;VALUE=DATE-TIME:20161116T073000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-947@indico.tlabs.ac.za
DESCRIPTION:Speakers: Alberto Andrighetto (INFN - Laboratori di Legnaro)\n
 https://indico.tlabs.ac.za/event/65/contributions/947/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/947/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Plenary 2:  Scientific opportunities at SARAF with the LiLiT neutr
 on source
DTSTART;VALUE=DATE-TIME:20161115T063000Z
DTEND;VALUE=DATE-TIME:20161115T073000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-949@indico.tlabs.ac.za
DESCRIPTION:Speakers: Ido Silverman (Soreq)\nhttps://indico.tlabs.ac.za/ev
 ent/65/contributions/949/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/949/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New Evaporator Station for the Center for Accelerator Target Scien
 ce
DTSTART;VALUE=DATE-TIME:20161115T080000Z
DTEND;VALUE=DATE-TIME:20161115T083000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-950@indico.tlabs.ac.za
DESCRIPTION:Speakers: John Greene (Argonne National Laboratory)\nAs part o
 f an equipment grant provided by DOE NP for the Center for Accelerator Tar
 get Science (CATS) initiative\, the procurement of a new\, electron beam\,
  high-vacuum deposition system from Angstrom Engineering was identified as
  a priority to insure reliable and continued availability of high-purity t
 argets. The apparatus was designed to contain TWO electron beam guns\; a s
 tandard 4-pocket 270° geometry source as well as an electron bombardment 
 source. The acquisition of this new system will allow for the replacement 
 of TWO outdated and aging vacuum evaporators. Also included is an addition
 al thermal boat source\, enhancing our capability within this deposition u
 nit. Recommended specifications for this system included an automated\, hi
 gh-vacuum pumping station\, a deposition chamber including a rotating and 
 heated substrate holder for uniform coating capabilities and incorporating
  computer-controlled\, state-of-the-art thin film technologies. Design spe
 cifications\, enhanced capabilities and the necessary mechanical modificat
 ions for our target work will be discussed.\n\nhttps://indico.tlabs.ac.za/
 event/65/contributions/950/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/950/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Opening Address
DTSTART;VALUE=DATE-TIME:20161114T070000Z
DTEND;VALUE=DATE-TIME:20161114T073000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-951@indico.tlabs.ac.za
DESCRIPTION:Speakers: Rudzani Nemutudi (iThemba LABS)\nhttps://indico.tlab
 s.ac.za/event/65/contributions/951/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/951/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Recycling 100Mo for direct production of 99mTc on medical cyclotro
 ns
DTSTART;VALUE=DATE-TIME:20161117T090000Z
DTEND;VALUE=DATE-TIME:20161117T093000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-952@indico.tlabs.ac.za
DESCRIPTION:Speakers: Stefan Zeisler (TRIUMF)\nPlease see attached *.docx 
 file.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/952/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/952/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Germanium Thin Film Nano- and Micro-texturing Using Femtosecond La
 ser
DTSTART;VALUE=DATE-TIME:20161117T140000Z
DTEND;VALUE=DATE-TIME:20161117T143000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-953@indico.tlabs.ac.za
DESCRIPTION:Speakers: Lebogang Kotsedi (1 UNESCO-UNISA Africa Chair in Nan
 osciences-Nanotechnology\, College of Graduate Studies\, University of Sou
 th Africa\, Muckleneuk ridge\, PO Box 392\, Pretoria-South Africa.  2 Nano
 sciences African Network (NANOAFNET)\, iThemba LABS-National Research Foun
 dation\, 1 Old Faure road\, Somerset West 7129\, PO Box 722\, Somerset Wes
 t\, Western Cape Province\, South Africa.)\nVacuum coating electron gun de
 positor was used to grow thin film of germanium on a Corning glass substra
 te. The deposition rate of the film was set to 10 Å/s with the chamber pr
 essure settled at 2 × 10-7 mbar. The thickness of the grown film was meas
 ured to be 400 ± 2 nm\, this was done using piezo-crystal thickness monit
 or in the deposition chamber. The film was then treated with a femtosecond
  laser with a fundamental wavelength of 1030 nm\, the laser beam was defoc
 used above the sample\, such that the energetic laser photons were only su
 fficient to heat the surface of the film and were out of ablation regime. 
 High-resolution scanning electron microscope micrographs show an evaluatio
 n of the surface morphology of the film as the laser fluence increases. X-
 ray diffraction study of the film revealed a formation of an oxide phase o
 f germanium as evident from the emergence of the diffraction peaks due to 
 oxidation. \n\nReference:\n1. L. Kotsedi\, P. Mthunzi\, Z.Y. Nuru\, S.M. E
 aton\, P. Sechoghela\, N. Mongwaketsi\, R. Ramponi\, M. Maaza “Femtoseco
 nd laser surface structuring of molybdenum thin films” Appl. Surf. Sci. 
 353\, 1334-1341 (2015).\n\n2. V. Veiko\, G. Odintsova\, Eduard Ageev\, Y. 
 Karlagina\, A. Loginov\, A. Skuratova\, E. Gorbunova\, “Controlled oxide
  films formation by nanosecond laser pulses for color marking” Opt. Expr
 ess. Vol. 22\, 20 (2014).\n\nhttps://indico.tlabs.ac.za/event/65/contribut
 ions/953/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/953/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Single-jet gas cooling of in-beam foils or specimens: Prediction o
 f the convective heat-transfer coefficient
DTSTART;VALUE=DATE-TIME:20161117T070000Z
DTEND;VALUE=DATE-TIME:20161117T073000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-954@indico.tlabs.ac.za
DESCRIPTION:Speakers: Deon Steyn (iThemba LABS)\nVarious applications util
 ize an impinging stream of gas for the cooling of metal foils and/or other
  material specimens while under bombardment in an accelerated particle bea
 m. Helium is often used for this purpose but other gasses are also sometim
 es employed. Noble gasses can provide cooling as well as an inert environm
 ent for the protection of the foils or specimens.\n\nAt iThemba LABS\, rad
 ionuclide production targets are bombarded outside the cyclotron and beaml
 ine vacuum. In addition to preserving the integrity of the vacuum\, the ab
 ility to rapidly transfer targets to and from a target station is greatly 
 simplified by eliminating the need to repeatedly break and restore the vac
 uum. The beamlines to the target stations have been provided with beam exi
 t windows consisting of two closely-spaced thin metal foils (Havar) cooled
  by helium flowing between them. These gas-cooled\, double-foil windows ar
 e thin enough to cause minimal energy degradation to the beam but provide 
 a strong enough barrier to maintain the vacuum. \n\nIn this presentation\,
  it will be shown that the so-called “duct equations” (in particular t
 he Dittus-Boelter\, Sieder-Tate and Petukhov-Kirillov formalisms) do not p
 rovide accurate estimates of the convective heat-transfer coefficient in a
 pplications where the beam spot is relatively small\, even though their us
 e for this purpose is not uncommon in the literature. These equations tend
  to underpredict the forced convection heat transfer\, sometimes by as muc
 h as a factor of 3. Recently\, calculations based on a description for sin
 gle-jet impingement heat transfer (the Chang formalism) provided results i
 n much better agreement with experimental values. The Chang formalism\, ho
 wever\, assumes that the jet direction is normal to the heated surface\, w
 hich is not the case in our beam-windows assemblies. An experiment was the
 refore performed at iThemba LABS to investigate the effect of the jet angl
 e on the convective heat-transfer coefficient. Rather surprisingly\, it wa
 s found that the dependence on the jet direction is indeed quite weak. Thi
 s was also found in more advanced modelling using a commercial Computation
 al Fluid Dynamics (CFD) code.\n\nhttps://indico.tlabs.ac.za/event/65/contr
 ibutions/954/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/954/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Encapsulation methods for solid radionuclide production targets at
  a medium-energy cyclotron facility
DTSTART;VALUE=DATE-TIME:20161117T063000Z
DTEND;VALUE=DATE-TIME:20161117T070000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-955@indico.tlabs.ac.za
DESCRIPTION:Speakers: Deon Steyn (iThemba LABS)\nThe majority of batch tar
 gets for the cyclotron production of radionuclides at iThemba LABS typical
 ly have circular disc or flat cylindrical shapes\, with the beam normal to
  the circular surfaces and usually swept (or wobbled) to reduce the beam p
 ower density. These targets are completely surrounded by fast-flowing cool
 ing water during bombardment. Target materials that need protection from t
 he cooling water (e.g. soluble substances such as compressed salts and/or 
 alkali metals that rapidly react with water) are encapsulated (or clad) wi
 th a substantially inert metal that has a relatively high melting point. F
 or this purpose\, aluminium\, niobium and stainless steel (grade 316) are 
 mostly employed. While the cold target materials are normally in a solid s
 tate (i.e. when out of the beam)\, they are likely to become partially\, o
 r even completely\, molten under bombardment conditions. The target capsul
 e serves as a barrier to the cooling water as well as to contain the targe
 t material and to maintain its shape\, should melting occur. \n\nThe main 
 aim of this presentation is to discuss the various methods of target encap
 sulation employed at iThemba LABS\, based on cold indentation welding\, el
 ectron beam (EB) welding and laser welding. While the latter two methods a
 re more modern and “state of the art”\, it will be argued that the “
 largely forgotten” method of cold indentation welding is still decidedly
  useful\, uncomplicated\, reliable and inexpensive. It is therefore still 
 routinely utilized for some production targets as well as experimental tar
 gets at iThemba LABS. A brief discussion on the target holders\, tandem ta
 rgetry and the two target stations for high-intensity bombardments with 66
  MeV proton beams will also be presented. It will be shown how the use of 
 a beam splitter in conjunction with tandem targetry in both target station
 s\, enables the laboratory to bombard four encapsulated targets simultaneo
 usly.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/955/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/955/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Preparation of multi-layer graphene sheets and their applications 
 for particle accelerators
DTSTART;VALUE=DATE-TIME:20161117T120000Z
DTEND;VALUE=DATE-TIME:20161117T123000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-956@indico.tlabs.ac.za
DESCRIPTION:Speakers: Atsushi Tatami (Kaneka Corporation)\nParticle accele
 rators have found wide success in physical\, biological\, and medical appl
 ications. Key elements in these accelerators are charge stripping foils fo
 r adjusting ion charge for good acceleration\, and ion beam sensors for in
 tensity distribution measurements. Conventional metal foils used for such 
 purposes\, however\, have suffered from their low lifetime under high inte
 nsity ion beam irradiation. Here we introduce multi-layer graphene sheets 
 as highly durable ion beam charge stripping foils and ion beam sensors. \n
 Multi-layer graphene sheets of 3 μm – 100 nm thickness were prepared by
  heat treatment of polymer films at temperatures above 3\,000 oC. The shee
 ts consist of highly-orientated graphite layers with good mechanical robus
 tness. Key features of these sheets include their high electrical conducti
 vity and thermal conductivity in the in-plane direction. \nThe sheets exhi
 bit greater durability and lower energy loss relative to metal foils. A nu
 mber of applications are currently being explored\, and some examples incl
 ude\, particle accelerator related materials and thermal interface materia
 ls.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/956/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/956/
END:VEVENT
BEGIN:VEVENT
SUMMARY:First experience with carbon stripping foils for the 160 MeV H− 
 Injection into the CERN PSB
DTSTART;VALUE=DATE-TIME:20161117T100000Z
DTEND;VALUE=DATE-TIME:20161117T103000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-957@indico.tlabs.ac.za
DESCRIPTION:Speakers: Wim Weterings (CERN\, European Organization for Nucl
 ear Research)\n160 MeV H− beam will be delivered from the new CERN linea
 r accelerator (Linac4) to the Proton Synchrotron Booster (PSB)\, using a H
 − charge-exchange injection system. A 200 µg/cm2 carbon stripping foil 
 will convert H− into protons by stripping off the electrons. The H− ch
 arge-exchange injection principle will be used for the first time in the C
 ERN accelerator complex and involves many challenges. In order to gain exp
 erience with the foil changing mechanism and the very fragile foils\, in 2
 016\, prior to the installation in the PSB\, a stripping foil test stand h
 as been installed in the Linac4 transfer line. In addition\, parts of the 
 future PSB injection equipment are also temporarily installed in the Linac
 4 transfer line for tests with a 160 MeV H− commissioning proton beam. T
 his paper describes the foil changing mechanism and control system\, summa
 rizes the practical experience of gluing and handling these foils and repo
 rts on the first results with beam.\n\nhttps://indico.tlabs.ac.za/event/65
 /contributions/957/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/957/
END:VEVENT
BEGIN:VEVENT
SUMMARY:ACTAR TPC: An active target and time projection chamber for nuclea
 r physics
DTSTART;VALUE=DATE-TIME:20161116T090000Z
DTEND;VALUE=DATE-TIME:20161116T093000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-958@indico.tlabs.ac.za
DESCRIPTION:Speakers: Alex Laffoley (GANIL)\nOne of the main challenges fa
 cing experiments with rare-isotope beams is the need to extract high quali
 ty data of key physical observables from extremely limited numbers of inci
 dent ions and ever decreasing production cross sections for nuclei furthes
 t from stability. Experiments are performed in inverse kinematics and must
  rely on thick reaction targets but this is often with the cost of a signi
 ficant reduction in the efficiency for detection of low-energy particles\,
  energy resolution\, and overall sensitivity.\n\nWe have adopted an altern
 ative approach and are presently developing a high-luminosity gas-filled a
 ctive target and time projection chamber (ACTAR TPC) for experiments at GA
 NIL\, ISOLDE\, and worldwide. In an active target\, the filling gas is use
 d as both a sensitive detection medium for charged particles and as a thic
 k reaction target with relatively low energy loss per-unit-length compared
  to conventional solid-targets. Another main advantage of these detectors 
 is their ability to track the individual trajectories of reaction or decay
  products through its volume to provide a complete 3-dimensional reconstru
 ction on an event-by-event basis.\n\nThe core detection system will consis
 t of micro pattern gaseous detectors (MPGDs) coupled to a highly pixelated
  2x2 mm$^2$ pad plane for a total of 16k electronic channels. Technical ch
 allenges associated with mechanics and readout of such a high-density fron
 t end have required several parallel developments including the design and
  construction of a comprehensive ASIC-based electronics system called Gene
 ral Electronics for TPCs (GET). A detailed overview of the ACTAR TPC proje
 ct\, whose aim is to perform first experiments in 2017\, and first results
  obtained with a 2048-channel prototype version of the final design will b
 e presented.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/958/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/958/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Targets' control systems for S3
DTSTART;VALUE=DATE-TIME:20161114T093000Z
DTEND;VALUE=DATE-TIME:20161114T100000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-959@indico.tlabs.ac.za
DESCRIPTION:Speakers: Christelle STODEL (GANIL)\nIn the first phase of exp
 loitation of SPIRAL-2\, the LINAG beams will be delivered to the NFS (Neut
 rons For Science) and S3 (Super Separator Spectrometer) experimental halls
 . These instrumentations were designed according to the Letters of Intent 
 submitted by a large physics community [1]. With S3\, special emphasis is 
 on the study of rare nuclei\, such as superheavy elements and neutron-defi
 cient isotopes\, produced by fusion evaporation reactions. The spectromete
 r includes a rotating target [2] to sustain the high-energy deposition\, a
  two-stage separator (momentum achromat followed by a mass spectrometer) t
 hat can be coupled to the implantation-decay station SIRIUS or to a gas ca
 tcher[3].\nIn order to cope with the very low production rate of the rare 
 events\, the beam intensities will be higher by a factor of five to ten co
 mpared to the present ones. Then\, a major experimental concern is the beh
 avior of thin targets under these highly intense heavy ion beams. \nWe pro
 pose to report on the targets control systems envisaged for S3 targets sta
 tions with a description of the experimental set-up (electron gun and infr
 ared camera) and an overview of the present results. \n\n[1] SPIRAL2 Lette
 rs of Intent: http://pro.ganil-spiral2.eu/spiral2\n[2]    Ch. Stodel et al
 \, Journal of Radioanalytical and Nuclear Chemistry\, (DOI) 10.1007/s10967
 -015-3936-5\n[3]    J. Piot and the S3 collaboration\, Acta Phys. Pol. B 4
 3 (2012)\n\nhttps://indico.tlabs.ac.za/event/65/contributions/959/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/959/
END:VEVENT
BEGIN:VEVENT
SUMMARY:A 20Ne Gas Target for the Active-Target Detector Development at iT
 hemba LABS
DTSTART;VALUE=DATE-TIME:20161116T093000Z
DTEND;VALUE=DATE-TIME:20161116T100000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-961@indico.tlabs.ac.za
DESCRIPTION:Speakers: Johann Wiggert Brummer (Stellenbosch University / iT
 hemba LABS)\nFile attached\n\nhttps://indico.tlabs.ac.za/event/65/contribu
 tions/961/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/961/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Planning of a new Target Laboratory for GSI & FAIR
DTSTART;VALUE=DATE-TIME:20161114T073000Z
DTEND;VALUE=DATE-TIME:20161114T080000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-962@indico.tlabs.ac.za
DESCRIPTION:Speakers: Bettina Lommel (GSI Helmholtz Centre for Heavy Ion R
 esearch GmbH)\nThe target laboratory at GSI consists of about 200 m² conv
 entional laboratory space and about 80 m² of laboratory space with an all
 owance for the handling of depleted 238U and 238UF4. The laboratories are 
 situated in a technical building\, which was put in operation in the 1970i
 es. Because of major refurbishing of the whole building the conventional l
 aboratories have to move to a new space.\nWe describe the searching for ne
 w lab space\, the safety precautions\, the financial restrictions\, the ba
 sic planning for building services\, for special laboratory equipment and 
 for moving and restarting the running systems. \nThe box coaters\, the ana
 lytics and most of the high-tech devices will be moved\, most of the labor
 atory equipment and all of the technical building installation have to be 
 modernized or rebuilt\, respectively. In order to fulfil the different dem
 ands that are inherent for the specialized techniques needed for a success
 ful target preparation a careful planning in close collaboration with the 
 technical infrastructure of GSI as well as with external planners is manda
 tory.\nIn the shutdown and maintenance break in 2017 the target laboratory
  has to move to the new laboratory premises on the campus and has to resta
 rt again to be in operation again ending of 2017 for beamtime in 2018.\n\n
 https://indico.tlabs.ac.za/event/65/contributions/962/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/962/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of natTi(p\,x) Reaction and Measurement of Excitatio
 n Functions up to 45 MeV
DTSTART;VALUE=DATE-TIME:20161117T073000Z
DTEND;VALUE=DATE-TIME:20161117T080000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-963@indico.tlabs.ac.za
DESCRIPTION:Speakers: Muhammad Shahid (National Institute of Safety And Se
 curity\, Pakistan Nuclear Regulatory Authority\, Islamabad)\nNatural titan
 ium activated with high energy proton beam results production of some valu
 able radionuclides applicable in medicine and industry. In this study we m
 easured the production cross-sections of 43\,44m\,44g\,46\,47\,48Sc\, 48V 
 radionuclides from their respective threshold to 45 MeV in natTi(p\,x) rea
 ction. Well-known stacked-foil activation technique and off-line gamma-ray
  spectrometry system was applied in the study. The sample was activated us
 ing the external beam line of MC-50 cyclotron at Korea Institute of Radiol
 ogical and Medical Sciences (KIRAMS)\, Korea. The measured results were co
 mpared with the literature data as well as with the model calculations usi
 ng TENDL-2015 library based on the TALYS 1.8 code. The integral yields for
  thick target of the investigated radio-nuclides was also deduced from the
  measured excitation functions. The study is beneficial for those involved
  in radioisotope production and is helpful to modify the nuclear model cal
 culations.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/963/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/963/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Actinide targets for fundamental research in nuclear chemistry and
  -physics
DTSTART;VALUE=DATE-TIME:20161115T123000Z
DTEND;VALUE=DATE-TIME:20161115T130000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-969@indico.tlabs.ac.za
DESCRIPTION:Speakers: Klaus Eberhardt (Johannes Gutenberg-Universität Mai
 nz\, 55099 Mainz Germany)\nAbstract\nThin actinide layers deposited on met
 allic or non-metallic substrates are widely used as calibration sources in
  nuclear spectroscopy. Other applications include fundamental research in 
 nuclear chemistry and –physics\, e.g. the chemical and physical properti
 es of super-heavy elements (SHE\, Z > 103) or nuclear reaction studies wit
 h heavy ions. For this\, layers of actinide target nuclei such as 238U\, 2
 42/244Pu\, 248Cm\, 249Bk and 249Cf with areal mass densities up to 1 mg/cm
 2 deposited on 1-2 μm thin metallic foils are required. For the design of
  future nuclear reactors like fast-fission reactors and accelerator-driven
  systems for transmutation of nuclear waste\, precise data for neutron abs
 orption as well as neutron-induced fission cross section data for 242Pu wi
 th neutrons of different energies are of particular importance. A recent a
 pplication include studies of nuclear transitions in 229Th. For this\, a t
 hin and very smooth layer of 233U is used.\nWe report here on the producti
 on of actinide layers by Molecular Plating (MP). MP is currently the only 
 fabrication method in cases where the desired actinide material is availab
 le only in very limited amounts or possess a high specific activity. Here\
 , deposition is performed from organic solution applying a current density
  of 1-2 mA/cm2. Under these conditions target thicknesses of 500-1000 μg/
 cm2 are possible applying a single deposition step with deposition yields 
 approaching 100 %.). For yield determination α-particle spectroscopy\, γ
 -spectroscopy and Neutron Activation Analysis is routinely used. Layer hom
 ogeneity can be checked with Radiographic Imaging. For target characteriza
 tion on a μm-scale a Scanning Electron Microscope in combination with X-r
 ay Fluorescence is also available. The combination of these analytical tec
 hniques is essential to improve the current target fabrication technology 
 and to understand target performance under long-term irradiations conditio
 ns. As an alternative technique to MP the production of thin lanthanide an
 d actinide layers by ink-jet printing is currently investigated.\n\nhttps:
 //indico.tlabs.ac.za/event/65/contributions/969/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/969/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thin and thick targets for radioactive ion beam production at SPIR
 AL1 facility
DTSTART;VALUE=DATE-TIME:20161116T073000Z
DTEND;VALUE=DATE-TIME:20161116T080000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-965@indico.tlabs.ac.za
DESCRIPTION:Speakers: Pascal JARDIN (CNRS/IN2P3/GANIL)\nP. Jardin\, O. Baj
 eat\, P. Delahaye\, M. Dubois\, V. Kuchi\, L. Maunoury\n\nGANIL (Grand Acc
 élérateur National d’Ions Lourds)\, CAEN\, France.\n\nThe upgrade of t
 he Système de Production d’Ions Radioactifs Accélérés en Ligne (SPIR
 AL1) facility will deliver its new Radioactive Ion Beams (RIB) by spring 2
 017. The goal of the upgrade is an improvement of the performances of the 
 installation in terms of isotopes species and ion charge states [1]. Ion b
 eams are produced using the Isotope Separator On Line Method\, consisting 
 in an association of a primary beam of stable ions\, a target and an ion s
 ource. The primary beam impinges on the material of the target. Radioactiv
 e isotopes are produced by nuclear reactions and propagate up to the sourc
 e\, where they are ionized and accelerated to create a RIB. One advantage 
 of SPIRAL1 is the variety of the available primary beams\, from carbon to 
 uranium with energies up to 95 MeV/A. Coupled with target made of a large 
 choice of materials\, the variety of possible nuclear reactions (fusion-ev
 aporation\, transfer\, fragmentation) leads to the production of a wide ra
 nge of isotopes\, and for some of them in regions of the nuclide chart sti
 ll rarely explored.\n\nDepending on the reaction process\, the collision e
 nergy and the primary beam power\, thin and thick targets are used. Their 
 design has to cope with specific constraints related to each primary beam 
 / target couple and to the ion source.\n\nAfter a brief presentation of th
 e SPIRAL1 Target Ion Source System challenges\, the main target features\,
  studies and designs under progress will be presented.\n\n[1] P. Jardin et
  al.\, Nuclear Intrum. and Methods B 376 (2016) 64-67\n\nhttps://indico.tl
 abs.ac.za/event/65/contributions/965/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/965/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Morphological and compositional study of 238U thin film targets fo
 r nuclear experiments
DTSTART;VALUE=DATE-TIME:20161118T070000Z
DTEND;VALUE=DATE-TIME:20161118T073000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-966@indico.tlabs.ac.za
DESCRIPTION:Speakers: Goedele Sibbens (European Commission - Joint Researc
 h Center - Directorate G)\nThe uncertainty on the neutron cross sections s
 trongly depends on the quality and characteristics of the deposited actini
 de films used as "targets" in the nuclear experiments. Until now\, only th
 e activity by alpha-particle counting\, the isotopic composition by therma
 l ionisation mass spectrometry and the diameter of the actinide deposits w
 ere measured to determine the mass and areal density of the actinide layer
 . \nIn this study a series of 238U deposits\, prepared by molecular platin
 g and vacuum deposition on different substrates\, were characterized with 
 non-destructive and destructive analysis techniques. The quality of the de
 posits was investigated by stereo microscopy\, autoradiography\, high-reso
 lution alpha-particle spectrometry\, atomic force microscopy and scanning 
 electron microscopy. The elemental composition was determined by x-ray pho
 toelectron spectroscopy\, thermal desorption spectroscopy\, depth profilin
 g and inductively coupled plasma mass spectrometry. The latter technique w
 as also applied on the starting U3O8 and converted UF4 powder. \nThis pape
 r compares the quality and morphology of the deposited 238U films prepared
  by molecular plating and vacuum deposition on various backings\; the elem
 ental composition determined by different characterization techniques and 
 discusses problems in target preparation and characterization.\n\nhttps://
 indico.tlabs.ac.za/event/65/contributions/966/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/966/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of 208PbS-Target on C-Backing
DTSTART;VALUE=DATE-TIME:20161118T063000Z
DTEND;VALUE=DATE-TIME:20161118T070000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-967@indico.tlabs.ac.za
DESCRIPTION:Speakers: Birgit Kindler (GSI Helmholtz Centre for Heavy Ion R
 esearch GmbH)\nThe structure of carbon layers is strongly dependent on the
  interlayer applied on the glass substrate and determines as a consequence
  the structure of the target layer deposited on the carbon backing. \nStan
 dardly applied self-supporting foils are optimised for the major applicati
 on. So at the GSI target laboratory carbon foils are perfected to withstan
 d a highly intense heavy ion beam\, either as stripper foil\, as backing o
 r as target. For most applications at GSI we use betaine-sucrose as partin
 g agent since the durability of carbon such produced proved to be best sui
 ted for experiments in our heavy-ion accelerator. Betaine-sucrose produces
  a microscopically rough surface.\nFor a special application\, carbon back
 ings with a very flat surface\, microscopically as well as macroscopically
  are needed as target and as backing for enriched.\nFor these targets we w
 orked with different parting agents and different deposition processes. We
  report on the yield\, on the structure of the carbon layers and the depos
 ited target layer 208PbS in dependence of the parting agent\, the thicknes
 s and the deposition methods.\n\nhttps://indico.tlabs.ac.za/event/65/contr
 ibutions/967/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/967/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Non-Contact Measurement of Thin Free-Standing Layer Targets with C
 hromatic Point Confocal Metrology
DTSTART;VALUE=DATE-TIME:20161118T093000Z
DTEND;VALUE=DATE-TIME:20161118T100000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-968@indico.tlabs.ac.za
DESCRIPTION:Speakers: Gabriel Schaumann (Technical University Darmstadt)\n
 Optical metrology is amenable to characterizing thin and fragile targets i
 n terms of thickness and surface roughness distribution. This presentation
  will detail a measurement setup that relies on a known axial chromatic sp
 read of a broad\, incoherent light source. With two of these point confoca
 l sensors\, a coordinate measurement machine has been build to metrologize
  thin film and multi-layer targets of both transparent and non-transparent
  materials.\n\nhttps://indico.tlabs.ac.za/event/65/contributions/968/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/968/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Development of rotating graphite carbon disk stripper
DTSTART;VALUE=DATE-TIME:20161117T103000Z
DTEND;VALUE=DATE-TIME:20161117T110000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-970@indico.tlabs.ac.za
DESCRIPTION:Speakers: Hiroo Hasebe (RIKEN)\nHiroo Hasebe1\, Hiroki Okuno1\
 , Atsushi Tatami2\, Masamitsu Tachibana2\, Mutsuaki Murakami2\, Hironori K
 uboki1\, Hiroshi Imao1\, Nobuhisa Fukunishi1\, Masayuki Kase1\, and Osamu 
 Kamigaito1\n\n1Nishina Center for Accelerator-Based Science\, RIKEN\n2-1 H
 irosawa\, Wako\, Saitama 351-0198\, Japan\n2 Frontier Materials Developmen
 t Laboratories\, Kaneka Corporation\n5-1-1 Torikainishi\, Settsu\, Osaka 5
 66-0072\, Japan\n\nThe rotating disk stripper[1] has been one of the essen
 tial elements in RIKEN RIBF for providing a stable high-intensity uranium 
 (U) beam. This rotating stripper was developed on the assumption that a la
 rge carbon disk (C-disk) was applied as the stripping material to reduce a
  heat load of the passing beam by increasing the beam-irradiated area. How
 ever\, no C-disk was applicable to the stripper at that time\, because of 
 its poor surface flatness and unexpected low density. Since 2012\, The ava
 ilability and intensity of the provided U beam have greatly enhanced\, by 
 adopting beryllium (Be) as the rotating disk material[2]. Nevertheless\, s
 ince the U beam intensity incident on the stripper has increased because o
 f the upgraded upstream instruments\, the thermal stress by the beam load 
 on the stripper deformed the Be-disk even in a short time operation\, whic
 h caused fluctuation of the provided U beam intensity. Therefore\, we reco
 nsidered the possibility for using C-disk again\, and tested a high-densit
 y highly oriented graphite (HDHOG) sheet[3] as a stripper disk. It was fou
 nd that the HDHOG sheet can be applied to the stripper with better strippi
 ng efficiency and higher transmission value than Be-disk. Also\, the lifet
 ime of the HDHOG disk seems to be much longer than Be. The problem in the 
 final stripping section has been solved and the recent results will be rep
 resented.\n\nReferences\n[1] H. Ryuto et al.: Nucl. Instr. and Meth. A 569
  (2008) 697.\n[2] H. Hasebe et al.: J Radioanal Nucl Chem (2015) 305:825
 –829\n[3] A. Tatami et al.: Presentation will be held in this conference
  entitled “Preparation of multi-layer graphene sheets and their applicat
 ions for particle accelerators”.\n\nhttps://indico.tlabs.ac.za/event/65/
 contributions/970/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/970/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Production and characterization of 7Be targets
DTSTART;VALUE=DATE-TIME:20161114T080000Z
DTEND;VALUE=DATE-TIME:20161114T083000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-971@indico.tlabs.ac.za
DESCRIPTION:Speakers: Emilio Andrea Maugeri (Paul Scherrer Institut)\nThis
  contribution presents the separation of 7Be from the cooling water of the
  Spallation Neutron Source at the Paul Scherrer Institut\, Switzerland\, f
 ollowed by the preparation and characterization of 7Be targets. These targ
 ets were used in two independent and successful experiments at n_TOF-CERN 
 and at SARAF facilities for the measurement of the 7Be(n\,α)4He cross sec
 tion in the energy range of interest for the Big-Bang nucleosynthesis. The
  results of these experiments are going to be used for solving or partiall
 y mitigate the long lasting “Cosmological Lithium problem". \nThe high s
 pecific activity of 7Be and the necessity of producing very thin targets\,
  to be able to detect the outgoing alpha particles\, were the main challen
 ges of this project. The first imposed to work in hot cell\, while the sec
 ond was overtook using two different deposition methods: molecular plating
  onto thin aluminium backings and vaporization of 7Be(NO3)2 droplets preci
 sely positioned onto a stretched low density polyethylene film. The thickn
 ess and the uniformity of the obtained targets were characterized by measu
 ring the energy degradation of 5.5 MeV alpha particles passing through the
 m. The results show the obtainment of very thin but not uniform targets wh
 en using the vaporization method\, conversely\, uniform but significantly 
 thicker targets were obtained by molecular plating.\n\nhttps://indico.tlab
 s.ac.za/event/65/contributions/971/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/971/
END:VEVENT
BEGIN:VEVENT
SUMMARY:NOVEL TECHNIQUE OF MAKING THIN TARGET FOIL OF HIGH DENSITY MATERIA
 L VIA ROLLING METHOD
DTSTART;VALUE=DATE-TIME:20161114T090000Z
DTEND;VALUE=DATE-TIME:20161114T093000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-972@indico.tlabs.ac.za
DESCRIPTION:Speakers: S.K. Chamoli (Department of Physics & Astrophysics\,
  University of Delhi\, Delhi 110007\, India)\nIn nuclear physics experimen
 ts\, thin (1-10 mg/cm2) self-supporting foils are required either as a tar
 get or as a backing for real target.  The rolling method of making such th
 in self-supporting foils is cost effective and yields more mechanically st
 rong foil than obtained with any other available technique. The targets ma
 de by rolling method\, due to their crystalline structure are stronger in 
 nature and therefore have better prospects of withstanding in a high energ
 y heavy-ion induced reaction experiments than the targets prepared by vacu
 um evaporation. The conventional rolling method fails to yield good qualit
 y thin foils of thicknesses less than ~ 2 mg/cm2 for high density material
 s with Z  70 (e.g. gold\, lead). To prepare foils thinner than ~ 2 mg/c
 m2 for these high density materials some extraordinary efforts with improv
 ed technique are needed. In the present work one such novel technique has 
 been described. Using this technique thin self-supporting gold foils of th
 ickness in the range of 0.850 - 2.5 mg/cm2 were obtained in the present wo
 rk. The technique uses some novel methods like heating of rolling pack to 
 a temperature of ~ 5000 C to maintain flatness of the pack during rolling\
 , the use of alcohol drops during rolling and the use of butter paper. Pri
 or to this work many people used various techniques to produce thin foils 
 of high density material like W\, Tl\, etc.[1-2]\, but none of them could 
 achieve thickness < 2 mg/cm2.  This is the first time when a target foil o
 f thickness ~ 1.0 mg/cm2 of a high density material like Gold have been ma
 de via rolling method using a novel technique. The details of the techniqu
 e used will be elaborated during presentation. \n\n[1] Frank J. Karasek\, 
 et al.\, Nuclear Instruments and Methods in Physics Research Section A 167
  (1979) 165-166.\n[5] J. Gehlot\, et al.\, Proceedings of DAE Symposium of
  Nuclear Physics\, Vo. 58\, G44 (2013)\n\nhttps://indico.tlabs.ac.za/event
 /65/contributions/972/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/972/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Preparation of Os and W targets by pulsed laser deposition (PLD) f
 or nuclear astrophysics experiments
DTSTART;VALUE=DATE-TIME:20161114T120000Z
DTEND;VALUE=DATE-TIME:20161114T123000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-973@indico.tlabs.ac.za
DESCRIPTION:Speakers: Andreea Mitu (Horia Hulubei National Institute for P
 hysics and Nuclear Engineering)\nKeywords: osmium target\, tungsten target
 \, pulsed laser deposition\, nuclear physics applications\n\nThe present r
 esearch study focuses on the preparation and characterization of Os and W 
 targets dedicated to nuclear astrophysics experiments. In general\, this t
 ype of experiments requires very smooth targets in a pure metal form\, wit
 hout points or wrinkles and with extremly-precised thicknesses.\nThese mat
 erials possess very high vaporization temperatures and as a consequence th
 e preparation of good quality Os and W targets using physical vapor deposi
 tion (PVD) techniques is very difficult. To overcome the limitations of PV
 D methods\, pulsed lased deposition (PLD) is one of the most popular techn
 ique that allows preparation of thin films of a wide range of materials wi
 th high density\, thickness uniformity on the defined surface\, controllab
 le thickness\, high purity and durability [1].\n       In this context\, s
 everal Os and W targets with different thicknesses (1-2μm) on 20μm alumi
 num backing were prepared using PLD technique. The most important target
 ’s characteristics (thickness\, chemical purity and surface morphology) 
 are further established through alpha transmission measurements\, XRD (X-r
 ay diffraction)\, SEM/EDX (Scanning Electron Microscopy/Energy Dispersive 
 X-ray) and Atomic Force Microscopy (AFM) analyses. \nThe performances of t
 he obtained targets were tested by alpha activation technique at 9MV Tande
 m accelerator from “Horia Hulubei-National Institute for Physics and Nuc
 lear Engineering (IFIN-HH\, Magurele\, Romania)\, in order to measure the 
 alpha induced reaction cross section of Os and W isotopes.\n\nReferences:\
 n[1] Pulsed laser deposition of thin films: applications-led growth of fun
 ctional materials/ edited by Robert Eason\, Published by John Wiley & Sons
 \, Inc.\, Hoboken\, New Jersey\, 2006.\n\nhttps://indico.tlabs.ac.za/event
 /65/contributions/973/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/973/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fabrication and characterization of carbon-backed thin 208Pb targe
 ts
DTSTART;VALUE=DATE-TIME:20161118T073000Z
DTEND;VALUE=DATE-TIME:20161118T080000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-974@indico.tlabs.ac.za
DESCRIPTION:Speakers: Meenu Thakur (Department of Physics\, Panjab Univers
 ity\, Chandigarh - 160014\, India)\nThin carbon-backed isotopically enrich
 ed 208Pb targets were required for our experiment aimed to study the react
 ion dynamics for 48Ti + 208Pb system\, populating the near super-heavy nuc
 leus 256Rf\, through mass-energy correlation of the fission fragments. Pur
 ity and thickness of the targets are of utmost importance in such studies 
 as these factors have strong influence on the measurement accuracy of mass
  and energy distribution of fission fragments. 208Pb targets with thicknes
 s ranging from 60 μg/cm2 to 250 μg/cm2 have been fabricated using physic
 al vapor deposition method in high vacuum environment at Inter University 
 Accelerator Centre (IUAC)\, New Delhi. 208Pb was deposited using resistive
  heating method\, whereas carbon (backing foil) deposition was performed u
 sing the electron gun bombardment technique. Different characterization te
 chniques such as Particle Induced X-ray Emission (PIXE)\, Energy Dispersiv
 e X-Ray Fluorescence (EDXRF) and Rutherford Backscattering Spectrometry (R
 BS) were used to assert the purity and thickness of the targets. These tar
 gets have successfully been used to accomplish our experimental objectives
 .\n\nhttps://indico.tlabs.ac.za/event/65/contributions/974/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/974/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fabrication of thin sandwiched 142\,150Nd targets
DTSTART;VALUE=DATE-TIME:20161115T100000Z
DTEND;VALUE=DATE-TIME:20161115T103000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-976@indico.tlabs.ac.za
DESCRIPTION:Speakers: Priya Sharma (Department of Physics\, Panjab Univers
 ity\, Chandigarh-160014\, India)\nThe synthesis of heavier elements is one
  of the prime area of research in experimental and theoretical nuclear  ph
 ysics experiments. Using 48Ti as a projectile\, we have planned to carry o
 ut the study of ER cross-section  and spin distribution of ERs on isotopic
  142\,150Nd lanthanide targets using HYRA spectrometer [1]. Fabrication of
  thin self supporting targets is highly difficult. But\, due to oxidizing 
 and smearing nature of lanthanides it is very difficult to get a self-supp
 orting very thin target foil (specially for high Z materials). In the tria
 l session\, various attempts were made to prepare thin self-supporting Nd 
 targets but all the trials were unsuccessful. So\, we have decided to use 
 a very thin backing foil of light Z material to fabricate 142\,150Nd targe
 ts for the reaction studies. Furthermore\, due to the hygroscopic nature o
 f Nd\, it quickly reacts with the hot water and form Nd(OH)3. To avoid the
  direct contact between Nd layer and water during floating\, a very thin c
 oating of carbon (thickness ~10 μg/cm2) was also deposited [2] just after
  the deposition of Nd layer. Prior to this work\, some groups have also re
 ported the preparation of Nd targets\, Sugai et al. [3] prepared 142Nd tar
 gets of thickness 100 mg/cm2 by fluorination of rare-earth oxide powders f
 ollowed by a Ca reduction using RF heating\, Greene et al. [4] used zircon
 ium as the reducing agent and neodymium targets of thickness 0.5 and 1.2 m
 g/cm2 has been prepared on 500 μg/cm2 carbon backing. In the present work
 \, the fabrication of sandwiched 142\,150Nd targets of thickness ~100-150 
 μg/cm2 were fabricated between two very thin layers of carbon using therm
 al evaporation method in diffusion pump based HV chamber which were used f
 or the HYRA spectrometer experiments.\n\nhttps://indico.tlabs.ac.za/event/
 65/contributions/976/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/976/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Study of the Lifetime for Charge Stripper Foils in the 3-GeV RCS o
 f J-PARC
DTSTART;VALUE=DATE-TIME:20161114T130000Z
DTEND;VALUE=DATE-TIME:20161114T133000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-980@indico.tlabs.ac.za
DESCRIPTION:Speakers: Yoshio Yamazaki (Japan Proton Accelerator Research C
 omplex (J-PARC))\nFor the 3GeV Rapid Cycling Synchrotron (RCS) in J-PARC\,
  charge stripper foil is a key technology to keep high operating rate for 
 multi-turn injection of high-power proton synchrotrons. For a charge strip
 per foil in the RCS\, we applied a Hybrid type thick Boron-doped Carbon (H
 BC: Boron 25%) foil which is produced with the arc-discharge method. The r
 equired foil thickness is about 1.5μm (333μg/cm2) corresponding to a con
 version efficiency of 99.7% for 400MeV injection from the linac. Actually 
 it has enough toughness to stand high-intensity beam operation less than 5
 00kW. Recently a graphite foil developed by TASC (Technology Research Asso
 ciation for Single Wall Carbon Nanotubes) graphene division in Japan was a
 lso tried to adopt as the stripping foil for the beam operation in J-PARC\
 , and it had good performance in the condition of 200kW beam operation. Bu
 t after the beam operation both foils occurred deformation by the beam dam
 age. So we are worry to be destroyed by the beam hitting in the higher pow
 er condition. It is very important toward 1MW beam operation to predict th
 e lifetime of foils. We have investigated by the microscopic analyses such
  as TEM for damage of foils by the Argon ion irradiation in energy of 300k
 eV of TIARA (Takasaki Ion Accelerators for Advanced Radiation Application)
 . Now we cannot estimate the lifetime of these foils for the 400MeV beam o
 peration from the results of offline foils study in TIARA. In order to eva
 luate the lifetime of foils quantitatively\, we started to obtain Raman sp
 ectra of foils irradiated each ion such as H\, He and Ar in energy of diff
 erent energy such as 350keV\, 2 and 3 MeV. We will try to predict the life
 time of foils by estimating peaks’ shifts of Raman spectra as an indicat
 or corresponding to DPA (Displacement Per Atom) by simulation code PHITS.\
 n\nhttps://indico.tlabs.ac.za/event/65/contributions/980/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/980/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of charge stripping scheme for uranium ions at 1-20 
 MeV/nucleon
DTSTART;VALUE=DATE-TIME:20161117T123000Z
DTEND;VALUE=DATE-TIME:20161117T130000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-982@indico.tlabs.ac.za
DESCRIPTION:Speakers: Hironori Kuboki (KEK J-PARC)\nCharge stripping is on
 e of the essential topics in heavy ion acceleration. For efficient acceler
 ation of heavy ions such as uranium (U)\, which has a large amount of elec
 trons\, the charge states after passing through a stripping material are c
 rucial for the facility design\, in terms of acceleration voltages and mag
 net specifications. Charge stripping sections for U acceleration are commo
 nly installed where the stripping energies become 1-20 MeV/nucleon\, becau
 se the mean charge state becomes almost doubled in this energy range if th
 e incident charge state is around 30-35 [1].\n\nAlso\, charge distribution
 s after the stripping material are very important since the fraction of th
 e desired charge state determines the beam intensity downstream and spoile
 d beam amount at the same time.\nThis issue should be treated carefully in
  high-intensity beam facility because it can lead to unfavorable beam loss
  and radioactivation.\n\nRecently\, a simulation for new U beam accelerati
 on at J-PARC has been in progress [2]\,\nwhich is planning to achieve worl
 d highest intensity by a new booster synchrotron using multi-charge accele
 ration [3]. To realize this acceleration scheme\, the charge distribution 
 after the stripping section\, which is located at the booster injection\, 
 is expected to have a distribution width as narrow as possible. Besides th
 at\, thickness of the stripping material should be thinner because the ene
 rgy loss\nin the stripping material would be compensated by an auxiliary a
 ccelerating cavity.\n\nIn this study\, the optimized energy and stripping 
 materials are searched in the cases of foils and gases\, using the compute
 d electron loss and capture cross sections as written in ref. [4]. The res
 ults and further potential using some auxiliary method such as laser excit
 ation/stripping\, plasma\, etc. would be presented.\n\n\n[1] H. Kuboki et 
 al.\, Phys. Rev. Accel. Beams 14\, 053502 (2011).\n\n[2] P.K. Saha\, H. Ha
 rada\, M. Kinsho\, M. Yamamoto\, and H. Sako\, Proceedings of HIAT'15 (201
 5).\n\n[3] H. Harada et al.\, to be published.\n\n[4] H. Kuboki et al.\, P
 hys. Rev. Accel. Beams 17\, 123501 (2014).\n\nhttps://indico.tlabs.ac.za/e
 vent/65/contributions/982/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/982/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Target development of oxidizing materials
DTSTART;VALUE=DATE-TIME:20161115T120000Z
DTEND;VALUE=DATE-TIME:20161115T123000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-983@indico.tlabs.ac.za
DESCRIPTION:Speakers: Abhilash Sthuthikkatt Reghu (Inter-University Accele
 rator Centre)\, Debulal Kabiraj (Inter-University Accelerator Centre)\nTar
 get development of oxidizing materials\n\nAbhilash S Ra\,*\, D. Kabiraja\n
 \naInter-University Accelerator Centre\, Aruna Asaf Ali Marg\, New Delhi 1
 10067\, India\n\n\n*Corresponding author: abhilashiuac@gmail.com\n\nAbstra
 ct\n\nTarget development of oxidizing materials is always a challenging jo
 b.  Oxidizing targets like Pb\, Nd\, Gd\, Sm\, Ba etc. are frequently fabr
 icated in target development laboratory at Inter-University Accelerator Ce
 ntre (IUAC) [1-8]. Minimizing the exposure of target materials to atmosphe
 re before and after the target preparation plays the most important role i
 n development readily oxidizing isotopic targets. Since many of them are o
 f rarely available isotopically enriched materials\, its preservation for 
 longer duration is also important.  Most of the targets are prepared by ei
 ther vacuum evaporation or rolling technique. In addition to recent target
  developments of oxidizing materials\, recent other target developments at
  IUAC will also be discussed in the report.\n\n \n\nReferences\n\n[1] D Ka
 biraj\, Samit Mandal\, D.K Avasthi\, Nucl. Instr. and Meth. A362 (1995) 20
 5.\n[2] Samit Mandal\, D Kabiraj\, D.K Avasthi\, Nucl. Instr. and Meth. A3
 97 (1997) 59.\n\n[3] Savi Goyal\, S.R. Abhilash\, D. Kabiraj\, Sunil Kalka
 l\, S. Mandal\, Instr. and Meth. A777 (2015) 70.\n[4] V. Kumar\, S.R. Abhi
 lash\, D. Kabiraj\, P. Thakur\, A.K. Bhati\,Nucl. Instr. and Meth. A613 (2
 010) 404.\n[5] S. R. Abhilash\, S. K. Saini\, D. Kabiraj\, J Radioanal Nuc
 l Chem (2014) 299:1137–1139\n[6] Gayatri Mohanto\, S. R. Abhilash\, D. K
 abiraj\, N. Madhavan\, R. K. Bhowmik J Radioanal Nucl Chem      (2014) 299
 :1129–1131.\n[7] Abhilash S R\, J. Gehlot\, Tathagata  Banerjee\, K. Sel
 vakumar\, Jasmeet Kaur\, D Kabiraj\, J Radioanal Nucl Chem (2015) 305: 749
 -753\n[8] J. Gehlot\, S.R. Abhilash\, S. Ojha\, D. Mehta \, D. Kabiraj\, A
 .M.Vinodkumar\, J Radioanal Nucl Chem (2015) 305:755–759\n\nhttps://indi
 co.tlabs.ac.za/event/65/contributions/983/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/983/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Radioactive lanthanides – from isotope production to nuclear phy
 sics experiments
DTSTART;VALUE=DATE-TIME:20161116T080000Z
DTEND;VALUE=DATE-TIME:20161116T083000Z
DTSTAMP;VALUE=DATE-TIME:20260714T073512Z
UID:indico-contribution-65-984@indico.tlabs.ac.za
DESCRIPTION:Speakers: Stephan Heinitz (Paul Scherrer Institut)\nNuclear as
 trophysics requires precise knowledge on cross section data for isotopes i
 nvolved in stellar nucleosynthesis. For the s-process occurring during ste
 llar evolution\, so-called branching point isotopes are especially importa
 nt\, since here neutron capture and β-decay competes. The measurement of 
 cross section data for these radioactive isotopes is a challenging endeavo
 ur due to the limited availability and high activity of the material invol
 ved.\n\nWe will report on the production of such branching point isotopes 
 at the high flux reactor at ILL\, Grenoble\, France\, and the following is
 otope separation performed at our institute. We have successfully separate
 d 150 GBq 171Tm and 3 GBq 147Pm from hundreds of milligrams of irradiated\
 , enriched lanthanide seed materials. Two suitable targets containing the 
 separated radioisotopes were successfully prepared by molecular plating an
 d provided to CERN n_TOF for neutron capture cross-section measurements. W
 e will briefly report on the production of targets for these isotopes and 
 give preliminary results of their cross section measurements. \n\nThis wor
 k will also focus on the production\, separation and characterization of w
 eighable amounts of the 163Ho isotope\, which has also gained a huge inter
 est in the physics community aiming to measure the neutrino mass. Approxim
 ately 2 mg of 163Ho have been successfully separated from hundreds of mg o
 f irradiated 162Er. This isotope is also foreseen for neutron cross-sectio
 n measurements at CERN n_TOF in the near future.\n\nhttps://indico.tlabs.a
 c.za/event/65/contributions/984/
LOCATION:Protea Hotel Stellenbosch
URL:https://indico.tlabs.ac.za/event/65/contributions/984/
END:VEVENT
END:VCALENDAR