Improvement of Scintillation Performance in Large Size Yttrium Doped BaF2 Crystals

被引：0

作者：

Hu, Chen ^{[1
]}

Xu, Chao ^{[2
]}

Zhang, Liyuan ^{[1
]}

Zhang, Qinghui ^{[2
]}

Zhu, Ren-Yuan ^{[1
]}

机构：

[1] CALTECH, HEP, Pasadena, CA 91125 USA

[2] Beijing Glass Res Inst, Beijing 101111, Peoples R China

来源：

2018 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE PROCEEDINGS (NSS/MIC) | 2018年

关键词：

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Barium fluoride (BaF2) crystal with sub nanosecond scintillation has attracted a broad interest in the HEP community. One crucial issue is its slow scintillation component with 600 ns decay time, which causes pile-up. Our previous studies show that the slow component can be suppressed effectively by yttrium doping. In this work, a 160 mm long BaF2 ingot with 5% yttrium doping was grown at BGRI, and was used to cut a 100 mm crystal and several small samples. Their optical and scintillation properties were measured at Caltech. The results confirm that yttrium doping effectively suppresses the slow component while maintaining its ultrafast light and light response uniformity unchanged. This is encouraging for a BaF2:Y crystal based ultrafast calorimeter for Mu2e-II.

引用

页数：2

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