Significantly different pulse shapes for γ- and α-rays in Gd3Al2Ga3O12:Ce3+ scintillating crystals

被引：39

作者：

Kobayashi, Masaaki ^{[1
]}

Tamagawa, Yoichi ^{[2
]}

Tomita, Shougo ^{[2
]}

Yamamoto, Akihiro ^{[2
]}

Ogawa, Izumi ^{[2
]}

Usuki, Yoshiyuki ^{[3
]}

机构：

[1] High Energy Accelerator Res Org KEK, IPNS, Tsukuba, Ibaraki 3050801, Japan

[2] Univ Fukui, Grad Sch Engn, Fukui 9108507, Japan

[3] Furukawa Co Ltd, Mat Res Lab, Tsukuba, Ibaraki 3050856, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 694卷

关键词：

v-Less double beta decay; Gd3Al2Ga3O12:Ce; Scintillators; Pulse shape discrimination; DOUBLE-BETA DECAY; GROWTH;

D O I：

10.1016/j.nima.2012.07.055

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have found that scintillation in Gd3Al2Ga3O12 (GAGG):Ce3+ garnet single crystals has significantly different pulse shapes for 0.662 MeV gamma- and 5.47 MeV alpha-rays. The decay and rise times for gamma-rays are smaller by 50% and threefold, respectively, than those for cc-rays. Because the GAGG:Ce is a dense, efficient and fast-response scintillator and because it can be grown in large-size single crystals, it should be a promising unified target and a detector material in the study of neutrinoless double beta decay of Gd-160 through the use of pulse shape discrimination between the beta-ray signals and the alpha-ray-induced backgrounds. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：91 / 94

页数：4

共 18 条

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