Cerium-doped single crystal and transparent ceramic lutetium aluminum garnet scintillators

被引：69

作者：

Cherepy, Nerine J. ^{[1
]}

Kuntz, Joshua D.

Tillotson, Thomas M.

Speaks, Derrick T.

Payne, Stephen A.

Chai, B. H. T.

Porter-Chapman, Yetta

Derenzo, Stephen E.

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Crystal Photon, Sanford, FL 32773 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2007年 / 579卷 / 01期

关键词：

scintillator; transparent ceramic; optical ceramic; garnet; luminescence; Ce dopant; light yield; Ce(3+);

D O I：

10.1016/j.nima.2007.04.009

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

For rapid, unambiguous isotope identification, scintillator detectors providing high-resolution gamma ray spectra are required. We have fabricated Lutetium Aluminum Garnet (LuAG) using transparent ceramic processing, and report a 2-mm thick ceramic exhibiting 75% transmission and light yield comparable to single-crystal LuAG:Ce. The LuAG:Ce luminescence peaks at 550nm, providing an excellent match for Silicon Photodiode readout. LuAG is dense (6.67 g/cm(3)) and impervious to water, exhibits good proportionality and 14 a fast decay (similar to 40ns), and we measure light yields in excess of 20,000 photons/MeV. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：38 / 41

页数：4

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