LuI3:Ce-a new scintillator for gamma ray spectroscopy

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 princip...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2004-10, Vol.51 (5), p.2302
Main Authors: Shah, K.S, Glodo, J, Klugerman, M, Higgins, W, Gupta, T, Wong, P, Moses, W.W, Derenzo, S.E, Weber, M.J, Dorenbos, P
Format: Article
Language:English
Subjects:
ATOMIC NUMBER
CERIUM
DECAY
ENERGY RESOLUTION
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PHOSPHORS
PHOTOMULTIPLIERS
RADIOLOGY AND NUCLEAR MEDICINE
RESOLUTION
scintillator LuI3 lutetium iodide gamma rayspectroscopy
SPECTROSCOPY
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Summary: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.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2004.832321