Pulse-shape discrimination potential of new scintillator material: La-GPS:Ce
Pulse-shape discrimination potential of new scintillator material: La-GPS:Ce
复制标题
新型闪烁体材料 La-GPS:Ce 的脉冲形状辨别潜力
DOI：
10.1088/1748-0221/14/06/p06037
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发表时间：
2019
影响因子：
1.3
通讯作者：
M. Yoshino and A. Yoshikawa
中科院分区：
文献类型：
--
作者：
K. Mizukoshi;T. Iida;I. Ogawa;K. Shimizu;S. Kurosawa;K. Kamada;M. Yoshino and A. Yoshikawa
(Gd（La）2Si 2 O 7：Ce（La-GPS：Ce）是一种新型闪烁体材料，具有高的光输出、高的能量分辨率和快的衰减时间。此外，闪烁体即使在高温（高达150 ° C）下也具有良好的光输出，并且在性质上不吸湿;因此，它特别适合于地下资源勘探。粒子识别极大地扩展了闪烁体的应用范围。对于资源勘探，颗粒识别应仅在单个脉冲中完成。确认了闪烁体的脉冲形状辨别。我们比较了两种方法：双门方法和数字滤波方法。用数字滤波方法（形状指示器），在0.66MeVee处，测量α和γ粒子之间的分离，F值为0.92。
(Gd, La) 2 Si 2 O 7: 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 o 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 α and γ particles was obtained to be 0.92 at 0.66 MeVee.