Photon emission from 511 keV gamma rays incident on BaF2 and LaF3:Nd3+ crystals using a cesium iodide photocathode detector

被引：5
作者：
Kononenko, W
Heinrich, JG
Lockyer, NS
Miller, JM
Woody, C
Kwan, S
机构：
[1] UNIV PENN,SCH ARTS & SCI,DAVID RITTERHOUSE LAB,PHILADELPHIA,PA 19104
[2] BROOKHAVEN NATL LAB,UPTON,NY 11973
[3] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 396卷 / 1-2期
关键词：
D O I：
10.1016/S0168-9002(97)00776-6
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have studied the possibility of using BaF2 and LaF3 doped with Nd3+, concentrations ranging from 0.1 to 15 mol% as efficient converters of 511 keV gamma rays. We have measured the number of photoelectrons/MeV for both crystals using a parallel-plate avalanche chamber operating with a CsI photocathode. The photocathode is sensitive to wavelengths in the range 160-220 nm. The fast component of the BaF2 emission spectrum has peaks at roughly 175, 195 and 200 nm, and the LaF3:Nd3+ emission spectrum peaks at 173 nm. We measure 3.71 +/- 0.04 +/- 1.11 photoelectrons/MeV for the BaF2 and 4.81 +/- 0.04 +/- 1.44 photoelectrons/MeV for the LaF3:Nd3+. The results for BaF2 and LaF3:Nd3+ are consistent with measured scintillation properties of these crystals and CsI photocathode quantum efficiencies.
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收藏
页码：172 / 180
页数：9
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