Radon activity measurement of JUNO nitrogen

被引：7

作者：

Yu, X. ^{[1
]}

Yu, C. ^{[1
]}

An, G. ^{[2
,3
,5
]}

Yu, B. ^{[2
,3
,4
]}

Hu, T. ^{[2
,3
]}

Zhou, L. ^{[2
,3
]}

Cai, X. ^{[2
,3
]}

Xie, Y. ^{[2
,3
]}

Sun, L. ^{[2
,3
]}

Fang, J. ^{[2
,3
]}

Yan, W. ^{[2
,3
]}

Jiang, J. ^{[2
,3
]}

Yin, X. ^{[2
,3
]}

机构：

[1] Nankai Univ, Tianjin 300071, Peoples R China

[2] State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

JOURNAL OF INSTRUMENTATION | 2020年 / 15卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Heavy-ion detectors; Data acquisition circuits;

D O I：

10.1088/1748-0221/15/09/P09001

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

As requirement of Jiangmen Underground Neutrino Observatory (JUNO), the radon activity in high purity nitrogen which is generated from nitrogen purification system should be measured. The measurement system which contains a radon detection chamber and a radon enrichment system to measure the radon activity higher than 3.873 mu Bq/m(3) has been developed for this purpose. As a result of measurement, the relationship between collection efficiency of detection chamber and voltage supplied has been calibrated, the background of detection chamber is 13.53 +/- 0.82 mBq/m(3) (stat.+syst.) and the enrichment efficiency of enrichment system is 51% under 25 standard liter per minutes flow speed. Measured by this system, experiment result shows that radon activity in raw nitrogen is 285 +/- 21 mu Bq/m(3) (stat.).

引用

页数：12

共 50 条

[1] Study of the radon removal and detection for JUNO
Zhang, Y. P.
Guo, C.
Liu, J. C.
Zhang, P.
Yang, C. G.
[J]. 16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019), 2020, 1468
[2] Absolute measurement of radon 222 activity
Picolo, JL
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 369 (2-3): : 452 - 457
[3] Radon measurement and mitigation activity in Finland
Valmari, T.
Arvela, H.
Reisbacka, H.
Holmgren, O.
[J]. RADIATION PROTECTION DOSIMETRY, 2014, 160 (1-3) : 18 - 21
[4] Radon measurement in liquid scintillator with nitrogen stripping method
Yuanxue Gao
Xin Ling
Zhihang Zhu
[J]. Radiation Detection Technology and Methods, 2022, 6 : 302 - 305
[5] Radon measurement in liquid scintillator with nitrogen stripping method
Gao, Yuanxue
Ling, Xin
Zhu, Zhihang
[J]. RADIATION DETECTION TECHNOLOGY AND METHODS, 2022, 6 (03) : 302 - 305
[6] Monitoring and measurement of radon activity in a new design of radon calibration chamber
Heidary, S.
Setayeshi, S.
Ghannadi-Maragheh, M.
Negarestani, A.
[J]. RADIATION MEASUREMENTS, 2011, 46 (08) : 694 - 700
[7] A Method for Spectroscopy Measurement of Radon Activity in Air
Mikhailov, M. A.
Mikhailov, M. M.
[J]. 10TH JUBILEE CONFERENCE OF THE BALKAN PHYSICAL UNION, 2019, 2075
[8] JUNO high purity nitrogen plant
Ling, Xin
Yu, Boxiang
Hou, Zhilong
Hu, Tao
Zhou, Li
Yan, Yongjun
Zhu, Zhihang
Cai, Xiao
Ding, Yayun
Fang, Jian
Shao, Junyu
Sun, Lijun
Sun, Xilei
Xie, Yuguang
Qi, Xiaohui
Zhang, Haodong
[J]. APPLIED RADIATION AND ISOTOPES, 2024, 208
[9] Environmental radon control in the 700 m underground laboratory at JUNO
Chenyang Cui
Jie Zhao
Gaosong Li
Yongpeng Zhang
Cong Guo
Zhenning Qu
Yifang Wang
Xiaonan Li
Liangjian Wen
Miao He
Monica Sisti
[J]. The European Physical Journal C, 84
[10] Environmental radon control in the 700 m underground laboratory at JUNO
Cui, Chenyang
Zhao, Jie
Li, Gaosong
Zhang, Yongpeng
Guo, Cong
Qu, Zhenning
Wang, Yifang
Li, Xiaonan
Wen, Liangjian
He, Miao
Sisti, Monica
[J]. EUROPEAN PHYSICAL JOURNAL C, 2024, 84 (02):

← 1 2 3 4 5 →