A Monte Carlo study for the shielding of <EM>γ</EM> backgrounds induced by radionuclides for CDEX

LI Lei; YUE Qian; TANG Chang-Jian; CHENG Jian-Ping; KANG Ke-Jun; LI Jian-Min; LI Jin; LI Yu-Lan; LI Yuan-Jing; MA Hao; XUE Tao; ZENG Zhi

doi:10.1088/1674-1137/35/3/013

Chinese Physics C> 2011, Vol. 35> Issue(3) : 282-287 DOI: 10.1088/1674-1137/35/3/013

A Monte Carlo study for the shielding of γ backgrounds induced by radionuclides for CDEX

Abstract
HTML
Reference
Related

PDF

Abstract：
The CDEX (China Dark matter EXperiment) Collaboration will carry out a direct search for WIMPs (Weakly Interacting Massive Particles) using an Ultra-Low Energy Threshold High Purity Germanium (ULE-HPGe) detector at the CJPL (China JinPing deep underground Laboratory). A complex shielding system was designed to reduce backgrounds and a detailed GEANT4 Monte Carlo simulation was performed to study the achievable reduction of γ rays induced by radionuclides and neutron backgrounds by D(γ,n)p reaction. Furthermore, the upper level of allowed radiopurity of shielding materials was estimated under the constraint of the expected goal. Compared with the radiopurity reported by other low-background rare-event experiments, it indicates that the shielding used in the CDEX can be made out of materials with obtainable radiopurity.

[1]	SU Jian , ZENG Zhi , MA Hao , YUE Qian , CHENG Jian-Ping , CHANG Jian-Ping , CHEN Nan , CHEN Ning , CHEN Qing-Hao , CHEN Yun-Hua , CHUANG Yo-Chun , DENG Zhi , DU Qiang , GONG Hui , HAO Xi-Qing , HE Qing-Ju , HUANG Han-Xiong , HUANG Teng-Rui , JIANG Hao , KANG Ke-Jun , LI Hau-Bin , et al . Study of the material photon and electron background and the liquid argon detector veto efficiency of the CDEX-10 experiment. Chinese Physics C, 2015, 39(3): 036001. doi: 10.1088/1674-1137/39/3/036001
[2]	LIANG Tai-Ran , SHEN Fei , YIN Wen , YU Quan-Zhi , YU Chun-Xu , TAO Ju-Zhou , LIANG Tian-Jiao . Study of shielding design for SANS at CSNS. Chinese Physics C, 2014, 38(7): 078202. doi: 10.1088/1674-1137/38/7/078202
[3]	DENG Jun , CAO Lei , SU Xu . Monte Carlo simulation of indoor external exposure due to gamma-emitting radionuclides in building materials. Chinese Physics C, 2014, 38(10): 108202. doi: 10.1088/1674-1137/38/10/108202
[4]	REN Zhong-Zhou , LIN Qi-Hu , . Diffusion Monte Carlo calculations ofthree-body systems. Chinese Physics C, 2012, 36(11): 1065-1068. doi: 10.1088/1674-1137/36/11/005
[5]	Carloni Calame . Status and accuracy of the Monte Carlo generators for luminosity measurements. Chinese Physics C, 2010, 34(6): 883-888. doi: 10.1088/1674-1137/34/6/045
[6]	XU Qing-Jun . News on PHOTOS Monte Carlo: γ^*→π⁺π^－(γ) and K^±→π⁺π^－e^±ν(γ). Chinese Physics C, 2010, 34(6): 889-895. doi: 10.1088/1674-1137/34/6/046
[7]	WANG Zhi-Gang , HE Kang-Lin , AN Zheng-Hua , CAI Xiao , DONG Ming-Yi , FANG Jian , HU Tao , LIU Wan-Jin , NING Fei-Peng , SUN Li-Jun , SUN Xi-Lei , WANG Xiao-Dong , XUE Zhen , YU Bo-Xiang , ZHANG Ai-Wu , ZHOU Li , , . Monte Carlo study on the low momentum μ-π identification of the BESⅢ EM calorimeter. Chinese Physics C, 2009, 33(10): 880-886. doi: 10.1088/1674-1137/33/10/011
[8]	ZHANG Yu-Chun , LI Yu-Xiao , LI Jia-Cai , YU Chun-Xu , CHEN Peng , WU Yuan-Ming , NIU Wei-Ping , ZHANG Shao-Ping . Monte Carlo study for γ+N→π+N at a new compound target. Chinese Physics C, 2008, 32(12): 952-956. doi: 10.1088/1674-1137/32/12/003
[9]	SUN Sheng-Sen , SHEN Xiao-Yan , ZHENG Zhi-Peng , YAN Mu-Lin . Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ. Chinese Physics C, 2004, 28(5): 463-468.
[10]	CHEN Dong-Liang , LI Jin , MAO Ze-Pu , QIU Jin-Fa , Wong T . Monte Carlo Study on the Effect of Shielding in TEXONO Neutrino Experiment. Chinese Physics C, 2002, 26(6): 626-631.
[11]	Yao Xiaoxia , Zhao Weiqin , Pang Yang . Monte Carlo Simulation of J/ψ Suppression Based on GCP Code. Chinese Physics C, 1999, 23(6): 536-545.
[12]	Luo Guangxuan , Tan Youheng , Zhang Chunsheng , Dong Yuju , Yuan Peng , Zhang Huimin , Wang Hui , Yuan Yukui , Li Jing . Monte-Carlo Investigation on the Performance of Huairou EAS Array. Chinese Physics C, 1995, 19(10): 884-890.
[13]	Li Jin , Li Yushan , Qi Nading , Xue Shengtian , Wang Ping , Hu Tao , Ma Donghong , Zhang Jiawen , Zhu Qiming , Jiang Chunhua , Jiang Zhijing . Monte Carlo study for strategies of Tau mass measurement. Chinese Physics C, 1995, 19(3): 209-216.
[14]	Ji Daren , Ying Heping , Chen Feng , Zhang Jianbo . Cluster Monte Carlo Algorithm for the Study of Quantum X-Y Model. Chinese Physics C, 1995, 19(S1): 61-68.
[15]	Li Jin , Li Yushan , Qi Nading , Xue Shengtian , Wang Ping , Hu Tao , Ma Donghong , Zhang Jiawen , Zhu Qiming , Jiang Chunhua , Jiang Zhijin . Monte Carlo Study on the Strategy of Tau Mass Measurement. Chinese Physics C, 1995, 19(S2): 115-123.
[16]	LI Wen-Zhu , ZHANG Jian-Bo , DONG Shao-Jing . MONTE CARLO STUDY OF SU(2) GROUP SPACE DECIMATION EFFECTIVE ACTION. Chinese Physics C, 1987, 11(4): 462-468.
[17]	CHEN Tian-Lun , HUANG Wu-Qun . MONTE CARLO STUDY OF THE TRIANGLE LATTICE QUENCHED EGUCHI-KAWAI MODEL. Chinese Physics C, 1986, 10(2): 254-256.
[18]	LI Wen-Zhu , DONG Shao-Jing . MONTE CARLO STUDY OF SU(3) LATTICE GAUGE THEORY FOR TWO ALTERANTIVE ACTIONS. Chinese Physics C, 1985, 9(4): 502-504.
[19]	LI Wen-Zhu , DONG Shao-Jing . MONTE CARLO STUDY OF MANTON'S ACTION FOR FOUR-DIMENSIONAL SU(5) LATTICE GAUGE THEORY. Chinese Physics C, 1985, 9(1): 34-40.
[20]	CHEN Tian-Lun , HUANG Wu-Qun , ZHENG Xi-Te . MONTE CARLO STUDY OF THE TRIANGLE LATTICE GEUCHI-KAWAI MODEL. Chinese Physics C, 1985, 9(1): 41-45.

Access

Get Citation

LI Lei, YUE Qian, TANG Chang-Jian, CHENG Jian-Ping, KANG Ke-Jun, LI Jian-Min, LI Jin, LI Yu-Lan, LI Yuan-Jing, MA Hao, XUE Tao, ZENG Zhi and A Monte Carlo study for the shielding of γ backgrounds induced by radionuclides for CDEX[J]. Chinese Physics C, 2011, 35(3): 282-287. doi: 10.1088/1674-1137/35/3/013

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-06-21
Revised: 2010-11-05

Article Metric

Article Views(2604)
PDF Downloads(662)
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

A Monte Carlo study for the shielding of γ backgrounds induced by radionuclides for CDEX

Received Date: 2010-06-21

Accepted Date: 2010-11-05

Available Online: 2011-03-05

Abstract: The CDEX (China Dark matter EXperiment) Collaboration will carry out a direct search for WIMPs (Weakly Interacting Massive Particles) using an Ultra-Low Energy Threshold High Purity Germanium (ULE-HPGe) detector at the CJPL (China JinPing deep underground Laboratory). A complex shielding system was designed to reduce backgrounds and a detailed GEANT4 Monte Carlo simulation was performed to study the achievable reduction of γ rays induced by radionuclides and neutron backgrounds by D(γ,n)p reaction. Furthermore, the upper level of allowed radiopurity of shielding materials was estimated under the constraint of the expected goal. Compared with the radiopurity reported by other low-background rare-event experiments, it indicates that the shielding used in the CDEX can be made out of materials with obtainable radiopurity.

A Monte Carlo study for the shielding of γ backgrounds induced by radionuclides for CDEX

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

A Monte Carlo study for the shielding of γ backgrounds induced by radionuclides for CDEX

HTML

目录