LuI3:Ce--A new scintillator for gamma ray spectroscopy

Journal Article · Sat Oct 23 04:00:00 UTC 2004 · IEEE Transactions on Nuclear Science

OSTI ID:861415

Shah, K S; Glodo, J; Klugerman, M; Higgins, W; Gupta, T; Wong, P; Moses, W W; Derenzo, S E; Weber, M J; Dorenbos, P

In this paper, we report on a new cerium doped, high atomic number scintillator, LuI3:Ce, for gamma ray spectroscopy. Crystals of this material have been grown using Bridgman process. LuI3 crystals doped with 0.5 and 5 percent Ce3+ show high light output ({approx}50,000 photons/MeV) and fast principal decay constant (23 to 31 ns). The Ce3+ emission peaks at 474 nm. Energy resolution of LuI3:Ce coupled to photomultiplier tube (PMT) and measured at 662 keV was {approx}11 percent [full-width at half-maximum (FWHM)]. Timing resolution of LuI3-PMT and BaF2-PMT detectors operating in coincidence mode was measured to be 210 ps (FWHM). Potential applications of this scintillator are discussed.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Biological andEnvironmental Research
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 861415
• Report Number(s): LBNL--58239; BnR: KP1401030
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 5 Vol. NS-51; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
62 RADIOLOGY AND NUCLEAR MEDICINE
ATOMIC NUMBER
CERIUM
DECAY
ENERGY RESOLUTION
PHOSPHORS
PHOTOMULTIPLIERS
RESOLUTION
SPECTROSCOPY
scintillator LuI3 lutetium iodide gamma rayspectroscopy