Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session Q45: Advances in Detectors and Their Electronics
3:00 PM–5:36 PM,
Wednesday, March 8, 2023
Room: Room 315
Sponsoring
Unit:
GIMS
Chair: Angela Di Fulvio, University of Illinois - Urbana Champaign
Abstract: Q45.00005 : Fast Neutron Scintillation from Ga2O3 Crystals for Radiation Detection*
3:48 PM–4:00 PM
Presenter:
Ke-Xun Sun
(UNLV)
Authors:
Ke-Xun Sun
(UNLV)
Daniel Valdes
(University of Nevada, Las Vegas)
Stuart Miller
(Nevada National Security Site, Los Alamos Operation)
Showera Haque
(Nevada National Security Site, Livermore Operations)
Sven Vogel
(Los Alamos National Laboratory)
We report fast neutron scintillation from furnace grown bulk Ga2O3 crystal. We conducted our experiment at Los Alamos Neutron Science Center (LANSCE) 4FP60R beamline with neutron energy 1 -- 800 MeV. We used a fiber coupled optical spectrometer to observe scintillation spectrum, and we located a spectral peak at 365 nm wavelength. We used a PI-MAX 4 intensified camera from Princeton Instruments to directly image scintillation photon emission pattern, and we observed bright scintillation images. Comparative calibration showed that the scintillation efficiency was approximately 30,000 photons per MeV. We are conducting further data analysis on neutron energy dependent scintillation efficiency.
*This material is based upon work supported by the Department of Energy/National Nuclear Security Administration under Award Number(s) DE-NA0004008.
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