Y3+/Li+和Y3+/Na+双掺杂氟化钡快响应闪烁晶体

摘要/Abstract

摘要： 氟化钡(BaF₂)晶体是已知响应最快的闪烁晶体,在高能物理、核物理及核医学等领域有着广泛的应用前景。抑制BaF₂晶体的慢发光成分对其工程应用至关重要。本文利用坩埚下降法制备了高Y³⁺掺杂浓度5%、8%、10%(摩尔分数)的BaF₂晶体,并采用Y³⁺与碱金属离子(Li⁺、Na⁺)共掺杂的方法形成电荷补偿阻止间隙F^-的产生,制备了双掺杂型BaF₂快响应闪烁晶体,进而基于优化的5 ns和2 500 ns时间门宽测试方法,研究了Y³⁺掺杂浓度以及Y³⁺与碱金属离子(Li⁺、Na⁺)共掺杂浓度对BaF₂闪烁晶体快/慢成分比的影响规律。结果表明,生长的高浓度Y³⁺掺杂BaF₂晶体的光学质量优异,在220 nm和300 nm处透过率分别高于90%和92%;随着Y³⁺掺杂浓度由0提高至10%,BaF₂晶体的慢发光成分显著降低,快/慢成分比由0.15提高至1.21;生长的Y³⁺/Li⁺及Y³⁺/Na⁺共掺杂BaF₂晶体的慢发光成分较Y³⁺掺杂BaF₂晶体进一步降低,快/慢成分比最高分别可达1.63和1.61。研制的双掺杂BaF₂快响应闪烁晶体有望应用于高能物理、核物理前沿实验等重要领域。

关键词: 氟化钡, 闪烁晶体, 共掺, 快/慢成分比, 快响应, 坩埚下降法

Abstract: Barium fluoride (BaF₂) crystal is known as the fastest scintillation crystal, which has a wide application prospect in high energy physics, nuclear physics and nuclear medicine. It is very important to suppress the slow luminescence component of BaF₂ crystal for its engineering application. BaF₂ crystals with high Y³⁺ doping concentration 5%, 8%, 10% (mole fraction) were prepared by Bridgman method, and the co-doped BaF₂ fast response scintillation crystals were prepared by co-doping Y³⁺ with alkali metal ions (Li⁺, Na⁺) to form charge compensation to eliminate the generation of interstitial F^-. Then, based on the optimized 5 ns and 2 500 ns time gate width measurement methods, the effects of Y³⁺ doping concentration and the co-doping concentration of Y³⁺ and alkali metal ions (Li⁺, Na⁺) on the fast/slow component ratio of BaF₂ scintillation crystal were studied. The results show that the optical quality of the high concentration Y³⁺ doped BaF₂ crystals is excellent, and the transmittance at 220 nm and 300 nm is higher than 90% and 92%, respectively. With the increase of Y³⁺ doping concentration from 0 to 10%, the slow luminescence component of BaF₂ crystal decrease significantly, and the fast/slow component ratio increase from 0.15 to 1.21. The slow luminescence component of the grown Y³⁺/Li⁺ and Y³⁺/Na⁺ co-doped BaF₂ crystals are further decrease compared with that of the Y³⁺ doped BaF₂ crystals, and the highest fast/slow component ratios obtained are 1.63 and 1.61, respectively. The co-doped BaF₂ fast response scintillation crystal is expected to be applied in the frontier experiments of high energy physics and nuclear physics.

Key words: barium fluoride, scintillation crystal, co-doping, fast/slow component ratio, fast time response, Bridgman method

中图分类号:

杨蕾, 张明荣, 刘建强, 侯越云, 胡久奎, 闫晋力, 张春生. Y³⁺/Li⁺和Y³⁺/Na⁺双掺杂氟化钡快响应闪烁晶体[J]. 人工晶体学报, 2022, 51(12): 1997-2002.

YANG Lei, ZHANG Mingrong, LIU Jianqiang, HOU Yueyun, HU Jiukui, YAN Jinli, ZHANG Chunsheng. Y³⁺/Li⁺ and Y³⁺/Na⁺ Co-Doped Barium Fluoride Fast Response Scintillation Crystal[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(12): 1997-2002.

参考文献

[1] HAN H T, ZHANG Z C, WENG X F, et al. Development of a fast radiation detector based on barium fluoride scintillation crystal[J]. Review of Scientific Instruments, 2013, 84(7): 073503.
[2] BENEMANSKAYA G, GARIBIN E, GUSEV Y, et al. Photosensors for PET scanner on the base of BaF₂ crystals[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009, 610(1): 335-337.
[3] MOSES W W. Current trends in scintillator detectors and materials[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002, 487(1/2): 123-128.
[4] SCHOTANUS P, VAN EIJK C W E, HOLLANDER R W, et al. Development study of a new gamma camera[J]. IEEE Transactions on Nuclear Science, 1987, 34(1): 271-276.
[5] ZHU R Y. On quality requirements to the Barium fluoride crystals[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994, 340(3): 442-457.
[6] SCHOTANUS P, DORENBOS P, VAN EIJK C W E, et al. Suppression of the slow scintillation light output of BaF₂ crystals by La³⁺ doping[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989, 281(1): 162-166.
[7] 陈俊锋,李翔,杜勇,等.大尺寸高质量掺钇氟化钡闪烁晶体的透光特性[J].人工晶体学报,2019,48(8):1403-1404.
CHEN J F, LI X, DU Y, et al. Optical transmittance of large, high quality Y doped Barium fluoride scintillation crystals[J]. Journal of Synthetic Crystals, 2019, 48(8): 1403-1404(in Chinese).
[8] WOODY C L, LEVY P W, KIERSTEAD J A. Slow component suppression and radiation damage in doped BaF₂ crystals[J]. IEEE Transactions on Nuclear Science, 1989, 36(1): 536-542.
[9] STEF M, NICOARĂ I, VIZMAN D. Distribution of Yb³⁺ and Yb²⁺ ions along YbF₃-doped BaF₂ crystals[J]. Cryst Res Technol, 2018, 53:1800186.
[10] DORENBOS P, VISSER R, HOLLANDER R W, et al. The effects of La³⁺ and Ce³⁺ dopants on the scintillation properties of BaF₂ crystals[J]. Radiation Effects and Defects in Solids, 1991, 119/120/121(1): 87-92.
[11] KAMADA K, NAWATA T, INUI Y, et al. Czochralski growth of 8 inch size BaF₂ single crystal for a fast scintillator[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005, 537(1/2): 159-162.
[12] 甄西合,任绍霞,刘建强,等.大尺寸氟化钡晶体的生长[J].人工晶体学报,2012,41(1):262-263.
ZHEN X H, REN S X, LIU J Q, et al. Growth of BaF₂ crystal with large scale[J]. Journal of Synthetic Crystals, 2012, 41(1): 262-263(in Chinese).
[13] CHEN J F, YANG F, ZHANG L Y, et al. Slow scintillation suppression in yttrium doped BaF₂ crystals[J]. IEEE Transactions on Nuclear Science, 2018, 65(8): 2147-2151.
[14] HU C, XU C, ZHANG L Y, et al. Development of yttrium-doped BaF₂ crystals for future HEP experiments[J]. IEEE Transactions on Nuclear Science, 2019, 66(7): 1854-1860.
[15] RADZHABOV E, ISTOMIN A, NEPOMNYASHIKH A, et al. Exciton interaction with impurity in barium fluoride crystals[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005, 537(1/2): 71-75.

Y³⁺/Li⁺和Y³⁺/Na⁺双掺杂氟化钡快响应闪烁晶体

Y³⁺/Li⁺ and Y³⁺/Na⁺ Co-Doped Barium Fluoride Fast Response Scintillation Crystal

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	金敏. 晶体人生丨介万奇:辐射探测半导体晶体拓荒者[J]. 人工晶体学报, 2022, 51(9-10): 1523-1526.
[2]	罗亮, 王承二, 余金秋. 掺Sr²⁺溴化铈晶体的生长与闪烁性能研究[J]. 人工晶体学报, 2022, 51(8): 1337-1342.
[3]	陈仁华, 周小坚, 张小珍, 卢紫翠, 刘华锋, 程兰兰, 汪永清. 金红石型Ti_1-2xCr_xMo_xO₂黑色色料制备及其性能研究[J]. 人工晶体学报, 2022, 51(8): 1484-1491.
[4]	唐华纯, 李中波, 张亮. 低余辉碘化铯闪烁晶体的生长与性能研究[J]. 人工晶体学报, 2022, 51(7): 1147-1151.
[5]	郑嘉茜, 陈俊锋, 李翔, 卢保奇, 冯鹤. 掺杂抑制氟化钡晶体慢闪烁成分研究进展[J]. 人工晶体学报, 2022, 51(6): 951-964.
[6]	丁言国, 叶崇志. YAlO₃∶Ce晶体的生长及性能研究[J]. 人工晶体学报, 2022, 51(6): 965-972.
[7]	尹佳奇, 余春燕, 翟光美, 李天保, 张竹霞. 铟镓共掺杂对n-ZnO纳米棒/p-GaN异质结生长行为和光电性能的影响[J]. 人工晶体学报, 2022, 51(6): 1012-1019.
[8]	王若铮, 闫秀良, 彭博, 林芳, 魏强, 王宏兴. 高质量硼掺杂单晶金刚石同质外延及电学性质研究[J]. 人工晶体学报, 2022, 51(5): 893-900.
[9]	熊明姚, 张锐, 文杜林, 苏欣. Ag,O共掺实现p型氮化铝纳米管电子结构的第一性原理研究[J]. 人工晶体学报, 2022, 51(3): 471-476.
[10]	许正昊, 王发展, 何浩平. Na-Ti共掺LiFePO₄电子结构及弹性性质的第一性原理研究[J]. 人工晶体学报, 2022, 51(2): 289-296.
[11]	张雅丽, 权纪亮, 刘纪岸, 刘军, 黄晋强. Ce∶LuAG闪烁晶体的生长研究[J]. 人工晶体学报, 2022, 51(12): 2003-2008.
[12]	王贝贝, 刘文鹏, 任浩, 张传成, 刘海莲, 邹勇, 丁守军. 钆钪铝石榴石单晶缺陷的微观形貌与成因研究[J]. 人工晶体学报, 2022, 51(11): 1851-1857.
[13]	沈轶明, 李嫚, 杨晨乐, 朱姝俊, 潘尚可, 潘建国. KCaCl₃:Ce晶体的生长及发光性能[J]. 人工晶体学报, 2022, 51(1): 21-26.
[14]	熊建辉, 王昊宇, 杨晨乐, 潘尚可, 陈红兵, 潘建国. K₂LaBr₅∶Pr晶体的生长及发光性能研究[J]. 人工晶体学报, 2021, 50(8): 1402-1407.
[15]	成双良, 任国浩, 吴云涛. Cs₂HfCl₆和Cs₂HfCl₆∶Tl晶体的生长、光学和闪烁性能研究[J]. 人工晶体学报, 2021, 50(5): 803-808.