BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Portable African Neutron-Gamma Laboratory for Innovative Nuclear S cience. DTSTART;VALUE=DATE-TIME:20231202T125500Z DTEND;VALUE=DATE-TIME:20231202T131000Z DTSTAMP;VALUE=DATE-TIME:20260606T142100Z UID:indico-contribution-478-3401@indico.tlabs.ac.za DESCRIPTION:Speakers: Pete Jones (iThemba LABS)\nThe Portable African Neut ron-Gamma Laboratory for Innovative Nuclear Science (PANGoLINS) project ai ms to further investigate measurements of neutrons which forms an importan t component part on site or in transit and the detection of both fissile m aterial for the use in decarbonised energy sources or disposal thereof. i Themba LABS has pioneered a mobile gamma-ray detection unit which allows a user to operate in the field and chart the location\, strength and energy of gamma radiation. This project allows not only for investigation of ne utrons but anticipates the value add on other features that are outdated i .e. battery pack and reducing current\, temperature monitoring that impact s data and overall analysis. Benefits of the outcome of this project incl udes economic impact\, contribution to GDP etc.\, increased highly skilled capacity and knowledge base and increased capabilities for technically in novation and social impact including improvement in quality of life\, pov erty alleviation and the potential impact in lowering barriers to entry fo r other South African technology innovations.\nAn overview of the project\ , it progress and potential outcomes will be presented.\n\nhttps://indico. tlabs.ac.za/event/119/contributions/3401/ LOCATION: URL:https://indico.tlabs.ac.za/event/119/contributions/3401/ END:VEVENT BEGIN:VEVENT SUMMARY:HiCANS neutron sources – The HBS project for a new class of acce lerator based neutron sources DTSTART;VALUE=DATE-TIME:20231202T124000Z DTEND;VALUE=DATE-TIME:20231202T125500Z DTSTAMP;VALUE=DATE-TIME:20260606T142100Z UID:indico-contribution-478-3402@indico.tlabs.ac.za DESCRIPTION:Speakers: Thomas Gutberlet (Forschungszentrum Jülich GmbH)\nA ccelerator driven neutron sources with high brilliance neutron provision p resent an attractive alternative to classical neutron sources of fission r eactors and spallation sources to provide scientist with neutrons to probe and analyze the structure and dynamics of matter. With the advent of high current proton accelerator systems\, a novel class of such neutron facili ties can be established termed High-Current Accelerator-driven Neutron Sou rces (HiCANS). Basic features of HBS are a high current proton accelerator \, a compact neutron production and moderator unit and an optimized neutro n transport system to provide thermal and cold neutrons with high brillian ce and a full suite of high performing epithermal\, thermal and cold neutr on instruments.\nThe Jülich Centre for Neutron Science is leading a proje ct to develop\, design and demonstrate such a novel accelerator driven Hig h-Brilliance neutron Sources (HBS). The project aims at construction of a scalable neutron source for a user facility with open access and service a ccording to the various and changing demand of its communities. Embedded w ithin an international collaboration with partners from Germany\, Europe a nd Japan the Jülich HBS project offers best flexible solutions to the sci entific and industrial users. The overall conceptual design as well as the technical design of HBS as blueprint of a HiCANS facility was published i n a series of recent reports.\nThe current status of the project\, progres s and next steps regarding accelerator\, target\, moderators and beam deli very\, milestones and its impact on the vision for future neutron landscap e will be presented.\n\nhttps://indico.tlabs.ac.za/event/119/contributions /3402/ LOCATION: URL:https://indico.tlabs.ac.za/event/119/contributions/3402/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of a novel self-calibration technique for γ-ray energ y-tracking arrays DTSTART;VALUE=DATE-TIME:20231202T122500Z DTEND;VALUE=DATE-TIME:20231202T124000Z DTSTAMP;VALUE=DATE-TIME:20260606T142100Z UID:indico-contribution-478-3400@indico.tlabs.ac.za DESCRIPTION:Speakers: Michael Bentley (University of York)\nThe developmen t of $\\gamma$-ray energy-tracking arrays using highly segmented High Puri ty Germanium (HPGe) detectors is currently the technological frontier of h igh-resolution gamma-ray spectroscopy in modern nuclear physics [1]. The t racking capability of such arrays strongly depends on the performance of t he Pulse Shape Analysis (PSA)\, which uses the position-dependent response of the detector signals to determine the $\\gamma$-ray interaction positi ons within the detector volume. The PSA algorithm is performed by comparin g the measured signal pulse shape to expected pulse shapes associated with different interaction positions – i.e. the “signal basis”. Therefor e\, producing a reliable signal basis is one of the key points for PSA.\n\ nA novel method to generate a reliable signal basis in a notably simple ex perimental way was proposed in [2]\, and this presentation reports on the testing and implementation of this method. In this method\, a $\\gamma$-ra y source illuminates the full array and the Compton scattering data is obt ained. Starting with the assumption of a segment-sized position resolution for every interaction point and using an iterative minimization procedure based on the tracking of Compton scattering events\, it is possible to co nverge to the real positions after several iterations\, which is the so-ca lled “self-calibration” approach. Heil *et al.* [2] demonstrated the f easibility of the approach using a simulation\, applied a simplified geome try for a generic array and without considering electronic pulses.\n\nThis presentation reports the new development of the self-calibration techniqu e with a realistic geometry for the AGATA array with pulse-shape signals\, and the first implementation of the approach using experimental source da ta with AGATA at the Legnaro National Laboratory. To demonstrate the perfo rmance of this technique\, it is first applied to a simulation data obtain ed using the interaction points produced by the AGATA Geant4 simulation pa ckage combined with a calculated pulse shape signal basis generated by the AGATA Detector Library (ADL)[3]. The signal basis produced by the self-ca libration method is compared with the initial ADL basis to show the validi ty of the method. This method was then applied to signals from real $\\gam ma$-ray source calibration data to generate\, for the first time\, an expe rimental in-situ signal basis for AGATA. This experimental self-calibrated basis is compared with the currently-used calculated ADL basis. PSA using both signal bases have been attempted and the comparison looks very encou raging for the new approach. Further development of the self-calibration t echnique is proposed and improvements to the experimental basis generated by the self-calibration technique are foreseen in the near future.\n\n[1] A. Korichi\, T. Lauritsen\, Eur. Phys. J. A 55\, 121 (2019).\n[2] S. Heil\ , S. Paschalis\, M. Petri\, Eur. Phys. J. A 54\, 172 (2018).\n[3] B. Bruyn eel\, B. Birkenbach\, P. Reiter\, Eur. Phys. J. A 52\, 70 (2016).\n\nhttps ://indico.tlabs.ac.za/event/119/contributions/3400/ LOCATION: URL:https://indico.tlabs.ac.za/event/119/contributions/3400/ END:VEVENT BEGIN:VEVENT SUMMARY:MAGNEX-FPD at iThemba LABS: enabling the heavy-ion detection capab ility at the K600 spectrometer facility DTSTART;VALUE=DATE-TIME:20231202T120000Z DTEND;VALUE=DATE-TIME:20231202T122500Z DTSTAMP;VALUE=DATE-TIME:20260606T142100Z UID:indico-contribution-478-3349@indico.tlabs.ac.za DESCRIPTION:Speakers: Luna Pellegri (University of the Witwatersrand and i Themba LABS)\nIn 2019\, a new project focused on implementing the MAGNEX F ocal Plane Detector (FPD) at the K600 spectrometer facility at iThemba LAB S was started with the aim to facilitate experiments involving heavy-ion b eams. The primary intention was to investigate Double Charge Exchange (DCE ) reactions and competing quasi-elastic channels at various incident energ ies\, expanding upon the research conducted at the INFN-Laboratori Naziona li del Sud (LNS) in Catania\, Italy\, as part of the NUMEN project. Once f ully commissioned the K600+MAGNEX-FPD configuration will not only allow to perform nuclear structure and reaction studies with heavy-ion beams but i t will also enable the capability to use low-energy light-ion beams that u p to now was forbidden due to the characteristics of the K600-FPD.\n\nThe MAGNEX FPD has been successfully transported and tested in a stand-alone c onfiguration at iThemba LABS. Presently\, the MAGNEX-FPD is being coupled to the mechanics of the K600 medium dispersion focal plane. This phase wil l be followed by a commissioning step with low-energy beams and radioactiv e sources\, to characterize the facility in terms of particle identificati on\, energy and angle resolution and detection efficiency. In this picture it is foreseen also the use of the African LaBr3:Ce array (ALBA)\, made u p of 21 large-volume LaBr3:Ce detectors\, available in the full configurat ion at iThemba LABS\, to allow particle-gamma coincidence measurements.\n\ nA general overview of the project and the scientific cases that could be studied will be presented.\n\nhttps://indico.tlabs.ac.za/event/119/contrib utions/3349/ LOCATION: URL:https://indico.tlabs.ac.za/event/119/contributions/3349/ END:VEVENT END:VCALENDAR