Pulse-shape discrimination potential of new scintillator material: La-GPS:Ce

被引：3
|
作者：
Mizukoshi, K. [1 ]
Iida, T. [2 ]
Ogawa, I [3 ]
Shimizu, K. [3 ]
Kurosawa, S. [4 ,5 ]
Karnada, K. [4 ,6 ]
Yoshino, M. [6 ,7 ]
Yoshikawa, A. [4 ,6 ,7 ]
机构：
[1] Osaka Univ, Grad Sch Sci, 1-1 Machikaneyama, Toyonaka, Osaka 5600043, Japan
[2] Univ Tsukuba, Fac Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058571, Japan
[3] Univ Fukui, Fac Engn, Bunkyo Ku, 3-9-1, Fukui 9108507, Japan
[4] Tohoku Univ, New Ind Creat Hatchery Ctr, 6-6-10 Aoba, Sendai, Miyagi 9808579, Japan
[5] Yamagata Univ, Fac Sci, 1-4-12 Kojirakawa Machi, Yamagata 9908560, Japan
[6] C&A Corp, Aoba Ku, 6-6-10 Aoba, Sendai, Miyagi 9808579, Japan
[7] Tohoku Univ, Inst Mat Res, 2-1-1, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF INSTRUMENTATION | 2019年 / 14卷 / 06期
关键词：
Materials for solid-state detectors; Particle identification methods; Scintillators and scintillating fibres and light guides; Double-beta decay detectors;
D O I：
10.1088/1748-0221/14/06/P06037
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
(Gd,La)(2)Si2O7 :Ce (La-GPS:Ce) is a new scintillator material with high light output, high energy resolution, and fast decay time. Moreover, the scintillator has a good light output even at high temperature (up to 150 degrees C) and is non-hygroscopic in nature; thus, it is especially suitable for underground resource exploration. Particle identification greatly expands the possible applications of scintillator. For resource exploration, the particle identification should be completed in a single pulse only. The pulse-shape discrimination of the scintillator was confirmed. We compared two methods: a double gate method and a digital filter method. Using digital filter method (shape indicator), F-measure to evaluate these separation between alpha and gamma particles was obtained to be 0.92 at 0.66 MeVee.
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页数：9
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