Measurement of intrinsic radioactive backgrounds from the <SUP>137</SUP>Cs and U/Th chains in CsI(Tl) crystals

LIU Shu-Kui; YUE Qian; LIN Shin-Ted; LI Yuan-Jing; TANG Chang-Jian; WONG Tsz-King; XING Hao-Yang; YANG Chao-Wen; ZHAO Wei; ZHU Jing-Jun

doi:10.1088/1674-1137/39/4/046002

Chinese Physics C> 2015, Vol. 39> Issue(4) : 046002 DOI: 10.1088/1674-1137/39/4/046002

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals

Abstract
HTML
Reference
Related

PDF

Abstract：
The inorganic CsI(Tl) crystal scintillator is a candidate anti-compton detector for the China Dark matter Experiment. Studying the intrinsic radiopurity of the CsI(Tl) crystal is an issue of major importance. The timing, energy and spatial correlations, as well as the capability of pulse shape discrimination provide powerful methods for the measurement of intrinsic radiopurities. The experimental design, detector performance and event-selection algorithms are described. A total of 359×3 kg-days data from three prototypes of CsI(Tl) crystals were taken at China Jinping Underground Laboratory (CJPL), which offers a good shielding environment. The contamination levels of internal isotopes from ¹³⁷Cs, ²³²Th and ²³⁸U series, as well as the upper bounds of ²³⁵U series are reported. Identification of the whole α peaks from U/Th decay chains and derivation of those corresponding quenching factors are achieved.

References

[1]

KANG Ke-Jun, CHENG Jian-Ping, CHEN Yun-Hua et al. J. Phys. Conf. Ser, 2010, 203: 012028[2] YUE Qian, WONG Tsz-King Henry. J. Phys. Conf. Ser., 2012, 375: 042061[3] ZHAO Wei, YUE Qian, KANG Ke-Jun et al. (CDEX collaboration). Phys. Rev. D, 2013, 88: 052004[4] KANG Ke-Jun, YUE Qian, WU Yu-Cheng et al. (CDEX collaboration). Chin. Phys. C, 2013, 37: 086002[5] LIU Shu-Kui, YUE Qian, KANG Ke-Jun et al. (CDEX collaboration). Phys. Rev. D, 2014, 90: 032003[6] YUE Qian, ZHAO Wei, KANG Ke-Jun et al. (CDEX collaboration). Phys. Rev. D, 2014, 90: 091701(R)[7] WONG Tsz-King Henry, LI Jin, CHANG C Y et al. Astropart. Phys., 2000, 14: 141-152[8] Kim S C, Bhang H, Choi J H et al. Phys. Rev. Lett., 2012, 108: 181301[9] LI H B, LI Jin, WONG Tsz-King Henry et al. (TEXONO collaboration). Phys. Rev. Lett., 2003, 90: 131802[10] Deniz M, LIN Shin-Ted, Singh V et al. (TEXONO collaboration). Phys. Rev. D, 2010, 81: 072001[11] KANG Ke-Jun, CHENG Jian-Ping, LI Jin et al. (CDEX collaboration). Front. Phys., 2013, 8: 412[12] WU Yu-Cheng, HAO Xi-Qing, YUE Qian et al. Chin. Phys. C, 2013, 37: 086001[13] WU S C, YUE Qian, Lai W P et al. Nucl. Instrum. Methods A, 2004, 523: 116[14] Birks J B. Theory and Practice of Scintillation Counting. London: Pergamon, 1964[15] Gwin R, Murry R B. Phys. Rev., 1963, 523: 501[16] Kim Y D, Hahn I S, Hwang M J et al. Nucl. Instrum. Methods A, 2005, 552: 456-462[17] Kim T Y, Cho I S, Choi D H et al. Nucl. Instrum. Methods A, 2003, 500: 337-344[18] ZHU Yue-Feng, LIN Shin-Ted, Singh V et al. (TEXONO collaboration). Nucl. Instrum. Methods A, 2006, 557: 490-500[19] Barton J C, Edgington J A et al. Nucl. Instrum. Methods A, 2000, 443: 277[20] Cooper S, Kraus H, Marchese J et al. Phys. Lett. B, 2000, 490: 6[21] Tretyak V I. Astropart. Phys., 2010, 33: 40-53

[1]	Ya-Ping Cheng , Liang-Jian Wen , Peng Zhang , Xing-Zhong Cao . e⁺/e^- discrimination in liquid scintillator and its usage to suppress ⁸He/⁹Li backgrounds. Chinese Physics C, 2017, 41(1): 016101. doi: 10.1088/1674-1137/41/1/016101
[2]	Manjeet Singh Gautam . Role of projectile breakup effects and intrinsic degrees of freedom on fusion dynamics. Chinese Physics C, 2016, 40(5): 054101. doi: 10.1088/1674-1137/40/5/054101
[3]	FENG Zhao-Dong , JIANG Peng , ZHANG Hong-Kai , ZHAO Bo-Zhen , QIN Xiu-Bo , WEI Cun-Feng , LIU Yu , WEI Long . Performance assessment of CsI(Tl) screens on varioussubstrates for X-ray imaging. Chinese Physics C, 2015, 39(7): 078202. doi: 10.1088/1674-1137/39/7/078202
[4]	ZHOU Xu , LIU Cong-Zhan , ZHAO Jian-Ling , ZHANG Fei , HANG Yi-Fei , LI Zheng-Wei , ZHANG Shuo , LI Xu-Fang , LU Xue-Feng , XU Zhen-Ling , LU Fang-Jun . Design and implementation of the NaI(Tl)/CsI(Na) detectors output signal generator. Chinese Physics C, 2014, 38(2): 026002. doi: 10.1088/1674-1137/38/2/026002
[5]	LIU Hong-Bang , ZHENG Yang-Heng , XIE Yi-Gang , LV Jun-Guang , ZHOU Li , YU Bo-Xiang , ZHANG Ai-Wu , AN Zheng-Hua , XIE Yu-Guang , ZHANG Dong , ZHENG Zhi-Peng . Study of the THGEM detector with a reflective CsI photocathode. Chinese Physics C, 2011, 35(4): 363-367. doi: 10.1088/1674-1137/35/4/008
[6]	SUN Xi-Lei , HU Tao , ZHOU Li , CAO Jun , WANG Yi-Fang , ZHAN Liang , YU Bo-Xiang , CAI Xiao , FANG Jian , XIE Yu-Guang , AN Zheng-Hua , WANG Zhi-Gang , XUE Zhen , ZHANG Ai-Wu , NING Fei-Peng , GE Yong-Shuai , LIU Ying-Biao , , . Fast light of CsI(Na) crystals. Chinese Physics C, 2011, 35(12): 1130-1133. doi: 10.1088/1674-1137/35/12/009
[7]	WANG Lie-Lin , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HAO Xin , ZHENG Yun , HE Chuang-Ye , WANG Lei , LI Xue-Qin , LIU Ying , PAN Bo , LI Zhong-Yu , DING Huai-Bo . Lifetime measurements in chiral nucleus ¹³⁰Cs. Chinese Physics C, 2009, 33(S1): 173-175. doi: 10.1088/1674-1137/33/S1/055
[8]	YE Yan-Lin , ZHOU Xiao-Hong , LIU Wei-Ping , MA Yu-Gang , ZHANG Yu-Hu , XU Fu-Rong . Outline of the progress in the study of radioactive nuclear physics and super-heavy nuclei. Chinese Physics C, 2008, 32(S2): 1-7.
[9]	WANG Zhi-Gang , SHAN Li-Min , SHANG Lei , XIE Wen-Jie , QIN Gang , LIU Chun-Xiu , YU Bo-Xiang , DONG Ming-Yi , CAI Xiao , ZHOU Li , XIA Xiao-Mi , LAI Yuan-Fen , WANG Man , , , , . Nuclear Counter Effect of Silicon Photodiode Used in CsI(Tl) Crystal Calorimeter. Chinese Physics C, 2006, 30(9): 876-879.
[10]	SHAN Li-Min , SHANG Lei , WANG Zhi-Gang , XIE Wen-Jie , QIN Gang , LIU Chun-Xiu , YU Bo-Xiang , DONG Ming-Yi , CAI Xiao , ZHOU Li , XIA Xiao-Mi , LAI Yuan-Fen , WANG Man , LIU Wan-Jin , SUN Li-Jun , FANG Jian , HE Miao , HU Tao , LV Jun-Guang . Time Information Study of CsI(Tl) Crystal Calorimeter of BESⅢ. Chinese Physics C, 2006, 30(11): 1091-1095.
[11]	LI Chen , ZHAN Wen-Long , XIAO Guo-Qing , GUO Zhong-Yan , SUN Zhi-Yu , LI Jia-Xing , CHEN Zhi-Qiang , WANG Meng , WANG Wu-Sheng , MAO Rui-Shi , CHEN Li-Xin , BAI Jie , HU Zhe . Two-Dimension Positional Sensitive CsI(Tl) Detector. Chinese Physics C, 2005, 29(3): 278-281.
[12]	WANG Shou-Yu , MA Ying-Jun , LIU Yun-Zuo , ZHANG Yu-Hu , LIANG Guo-Dong . High-Spin Level Scheme of ¹²⁶Cs. Chinese Physics C, 2004, 28(5): 491-494.
[13]	LIU Da-Zhi , LI Yuan-Jing , LI Jin , YUE Qian , Wong Henry Tsz-King , Chang Wen-Chen , Venktesh Singh . Energy Reconstruction for Long Column CsI(Tl) Crystal Detector. Chinese Physics C, 2004, 28(2): 186-190.
[14]	LIU Chun-Xiu , FU Cheng-Dong , ZHOU Li , ZHANG Qin-Jian , XIA Xiao-Mi , LAI Yuan-Fen , LI Jin , FANG Jian , CHEN Yuan , CAI Xiao , SHANG Lei , WANG Man , LU Jun-Guang , WANG Yi-Fang . Optimization in the Design of BESⅢ CsI Crystal Calorimeter. Chinese Physics C, 2003, 27(12): 1114-1118.
[15]	YUE Qian , LIU Yan , LI Jin , WANG H , WANG M . Energy Calibration of CsI(Tl) Crystal for Quenching Factor Measurement in Dark Matter Search. Chinese Physics C, 2002, 26(7): 728-734.
[16]	XING Zheng , CHEN Xing-Qu , WANG Zi-Xing , XU Jin-Zhang . Evolution of Superdeformed Shapes in Odd-A Tl Nuclei. Chinese Physics C, 2000, 24(S1): 45-49.
[17]	Qin Lijun , Zhan Wenlong , Guo Zhongyan , Xiao Guoqing , Sun Zhiyu , Li Jiaxing , Meng Xiangwei , Jiang Shanhong , Wang Jinchuan , Wang Quanjin . CsI(Tl) Detector With Position-Sensitive Photomultiplier Readout. Chinese Physics C, 1999, 23(7): 629-635.
[18]	Gu Jinnan . Structure of ²⁰⁸Tl. Chinese Physics C, 1994, 18(S4): 429-434.
[19]	Zhan Wenlong , Guo Zhongyan , Zhou Jianqun , Yin Quanmin , Zhao Youxiong , Wang Jinchuan , Xi Hongfei , Wang Yifang , Luo Yongfeng . Radioactive Ion Beams at HIRFL. Chinese Physics C, 1994, 18(S3): 251-258.
[20]	Sun Xiangfu , Liu Zhong , Zhou Xiaohong , Lei Xiangguo , Jin Hanjuan , Pan Qiangyan , Zhang Yuhu , Guo Yingxiang , Cheng Xinfeng , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Measurement of the h_11/2 Band of ¹¹⁷Cs. Chinese Physics C, 1994, 18(S4): 341-344.

Access

Get Citation

LIU Shu-Kui, YUE Qian, LIN Shin-Ted, LI Yuan-Jing, TANG Chang-Jian, WONG Tsz-King, XING Hao-Yang, YANG Chao-Wen, ZHAO Wei and ZHU Jing-Jun. Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals[J]. Chinese Physics C, 2015, 39(4): 046002. doi: 10.1088/1674-1137/39/4/046002

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-08-04
Revised: 2014-10-22

Article Metric

Article Views(1892)
PDF Downloads(235)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals

Corresponding author: YUE Qian,

Corresponding author: LIN Shin-Ted,

Received Date: 2014-08-04

Accepted Date: 2014-10-22

Available Online: 2015-04-05

Abstract: The inorganic CsI(Tl) crystal scintillator is a candidate anti-compton detector for the China Dark matter Experiment. Studying the intrinsic radiopurity of the CsI(Tl) crystal is an issue of major importance. The timing, energy and spatial correlations, as well as the capability of pulse shape discrimination provide powerful methods for the measurement of intrinsic radiopurities. The experimental design, detector performance and event-selection algorithms are described. A total of 359×3 kg-days data from three prototypes of CsI(Tl) crystals were taken at China Jinping Underground Laboratory (CJPL), which offers a good shielding environment. The contamination levels of internal isotopes from ¹³⁷Cs, ²³²Th and ²³⁸U series, as well as the upper bounds of ²³⁵U series are reported. Identification of the whole α peaks from U/Th decay chains and derivation of those corresponding quenching factors are achieved.

HTML

Reference (1)

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals

Corresponding author: YUE Qian,

Corresponding author: LIN Shin-Ted,

HTML

目录

Measurement of intrinsic radioactive backgrounds from the 137Cs and U/Th chains in CsI(Tl) crystals

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Measurement of intrinsic radioactive backgrounds from the 137Cs and U/Th chains in CsI(Tl) crystals

Corresponding author: YUE Qian,

Corresponding author: LIN Shin-Ted,

HTML

目录

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals

Measurement of intrinsic radioactive backgrounds from the ¹³⁷Cs and U/Th chains in CsI(Tl) crystals