La- and La-/Ce-Doped BaF2 Crystals for Future HEP Experiments at the Energy and Intensity Frontiers Part II

被引：7

作者：

Yang, Fan ^{[1
,2
]}

Chen, Junfeng ^{[1
,3
]}

Zhang, Liyuan ^{[1
]}

Hu, Chen ^{[1
]}

Zhu, Ren-Yuan ^{[1
]}

机构：

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

[2] Nankai Univ, Sch Phys, Key Lab Weak Light Nonlinear Photon, Minist Educ, Tianjin 300071, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 201899, Peoples R China

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2019年 / 66卷 / 01期

关键词：

Barium fluoride (BaF2); rare earth doping; slow scintillation component suppression; SCINTILLATION PROPERTIES; SLOW COMPONENT; SUPPRESSION;

D O I：

10.1109/TNS.2018.2884975

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In addition to La-doped barium fluoride (BaF2) crystals, La/Ce co-doped BaF2 crystals were also investigated at the California Institute of Technology, Pasadena, CA, USA. Strong cerium-induced emissions peaked at 305 and 320 nm with a decay time of 25 ns were observed, in addition to the fast and slow scintillation at 220 and 300 nm, respectively. The La/Ce co-doping was also found effective in suppressing the slow component in BaF2. Compared to La-doped crystals, the La/Ce co-doped crystals have a better light output in both 50- and 2500-ns gate. The fast/slow ratio of La/Ce co-doped crystal was found to be about 1/1, similar to La-doping, which is also considered not sufficient for pile-up suppression. A 20-cm-long La/Ce co-doped BaF2 crystal shows also excellent optical quality and light response uniformity.

引用

页码：512 / 518

页数：7

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