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SUMMARY:Photon Detection System in the far detector module of the DUNE exp
 eriment
DTSTART;VALUE=DATE-TIME:20230906T104000Z
DTEND;VALUE=DATE-TIME:20230906T110000Z
DTSTAMP;VALUE=DATE-TIME:20260811T112625Z
UID:indico-contribution-3287@indico.tlabs.ac.za
DESCRIPTION:Speakers: Francesco Di Capua (Università di Napoli "Federico 
 II")\nThe Deep Underground Neutrino Experiment (DUNE) is a long baseline n
 eutrino experiment for neutrino science and Beyond the Standard Model phys
 ics\, aiming to resolve the neutrino mass hierarchy and measure CP-violati
 on phase. DUNE will also have sensitivity to detect neutrinos from superno
 vae.\nThe experiment will make use of four far detector (FD) modules\, 130
 0 km away from the beam line\, installed 1.5 km deep underground. The FD m
 odules will consist of Liquid Argon Time Projection Chambers with 17 kt of
  liquid argon each\, the largest ever attempted.\nPhoton detection systems
  (PDS) are integrated in the liquid-argon neutrino detectors and are used 
 to provide the timing information for an event\, which is necessary for re
 constructing the drift coordinates of ionizing particle tracks and can be 
 effectively used for other purposes including triggering events\, backgrou
 nd rejection\, and calorimetric energy estimation.\nThe PDS of the first F
 D module consists of light collector modules placed in the inactive space 
 between the innermost wire planes of the TPC anode. The light collectors\,
  the so-called X-ARAPUCAs\, consist of cells acting as light trap and capt
 uring wavelength-shifted photons inside boxes with highly reflective inter
 nal surfaces where they are guided to Silicon Photomultipliers by waveleng
 th-shifting bars.\nThe first FD module will use X-ARAPUCAs based rectangul
 ar Photon Detection unit (Supercell) having dimensions 209×12×2 cm3. The
  48 SiPMs on each X-ARAPUCA supercell are ganged together\, and the signal
 s are collected by FE electronics\, mounted on the supercell. The second F
 D module will be equipped with Vertical Drift system\, in which charge is 
 drifted vertically toward the charge readout planes. In this case\, a new 
 design for X-ARAPUCA\, called Megacell has been implemented in which the d
 etector has square dimensions 600×600×8 mm3. In the present work the res
 ults in term of photon detection efficiency performances for X-ARAPUCA Sup
 ercell design and the test ongoing for the X-ARAPUCA Vertical Drift module
 s are reported.\n\nhttps://indico.tlabs.ac.za/event/112/contributions/3287
 /
LOCATION: Meeting Room 2.41 - 2.43
URL:https://indico.tlabs.ac.za/event/112/contributions/3287/
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