TY - JOUR
T1 - Low radioactive material screening and background control for the PandaX-4T experiment
AU - The PandaX-4T collaboration
AU - Qian, Zhicheng
AU - Si, Lin
AU - Abdukerim, Abdusalam
AU - Bo, Zihao
AU - Chen, Wei
AU - Chen, Xun
AU - Chen, Yunhua
AU - Cheng, Chen
AU - Cheng, Yunshan
AU - Cui, Xiangyi
AU - Fan, Yingjie
AU - Fang, Deqing
AU - Fu, Changbo
AU - Fu, Mengting
AU - Geng, Lisheng
AU - Giboni, Karl
AU - Gu, Linhui
AU - Guo, Xuyuan
AU - Han, Ke
AU - He, Changda
AU - He, Jinrong
AU - Huang, Di
AU - Huang, Yanlin
AU - Huang, Zhou
AU - Hou, Ruquan
AU - Ji, Xiangdong
AU - Ju, Yonglin
AU - Li, Chenxiang
AU - Li, Mingchuan
AU - Li, Shu
AU - Li, Shuaijie
AU - Lin, Qing
AU - Liu, Jianglai
AU - Lu, Xiaoying
AU - Luo, Lingyin
AU - Ma, Wenbo
AU - Ma, Yugang
AU - Mao, Yajun
AU - Meng, Yue
AU - Ning, Xuyang
AU - Qi, Ningchun
AU - Ren, Xiangxiang
AU - Shaheed, Nasir
AU - Shang, Changsong
AU - Shen, Guofang
AU - Sun, Wenliang
AU - Tan, Andi
AU - Tao, Yi
AU - Wang, Anqing
AU - Zhou, Xiaopeng
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/6
Y1 - 2022/6
N2 - PandaX-4T is a ton-scale dark matter direct detection experiment using a dual-phase TPC technique at the China Jinping Underground Laboratory. Various ultra-low background technologies have been developed and applied to material screening for PandaX-4T, including HPGe gamma spectroscopy, ICP-MS, NAA, radon emanation measurement system, krypton assay station, and alpha detection system. Low background materials were selected to assemble the detector. Surface treatment procedures were investigated to further suppress radioactive background. Combining measured results and Monte Carlo simulation, the total material background rates of PandaX-4T in the energy region of 1–25 keVee are estimated to be (9.9 ± 1.9) × 10−3 mDRU for electron recoil and (2.8 ± 0.6) × 10−4 mDRU for nuclear recoil. In addition, natKr in the detector is estimated to be < 8 ppt. [Figure not available: see fulltext.].
AB - PandaX-4T is a ton-scale dark matter direct detection experiment using a dual-phase TPC technique at the China Jinping Underground Laboratory. Various ultra-low background technologies have been developed and applied to material screening for PandaX-4T, including HPGe gamma spectroscopy, ICP-MS, NAA, radon emanation measurement system, krypton assay station, and alpha detection system. Low background materials were selected to assemble the detector. Surface treatment procedures were investigated to further suppress radioactive background. Combining measured results and Monte Carlo simulation, the total material background rates of PandaX-4T in the energy region of 1–25 keVee are estimated to be (9.9 ± 1.9) × 10−3 mDRU for electron recoil and (2.8 ± 0.6) × 10−4 mDRU for nuclear recoil. In addition, natKr in the detector is estimated to be < 8 ppt. [Figure not available: see fulltext.].
KW - Dark Matter and Double Beta Decay (experiments)
KW - Rare Decay
UR - https://www.scopus.com/pages/publications/85134003857
U2 - 10.1007/JHEP06(2022)147
DO - 10.1007/JHEP06(2022)147
M3 - 文章
AN - SCOPUS:85134003857
SN - 1029-8479
VL - 2022
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 6
M1 - 147
ER -