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A simple design concept for elimination of the impact of humidity on radon measurements using electrostatic collection

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成果类型:
期刊论文
作者:
Tan, Yanliang*;Xiao, Detao;Zhou, Qingzhi;Tang, Quan;Shan, Jian;...
通讯作者:
Tan, Yanliang
作者机构:
[Tan, Yanliang] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang City 421008, Hunan Province, Peoples R China.
[Zhou, Qingzhi; Tang, Quan; Shan, Jian; Xiao, Detao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
[Kearfott, Kimberlee] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA.
通讯机构:
[Tan, Yanliang] H
Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang City 421008, Hunan Province, Peoples R China.
语种:
英文
关键词:
Radon monitor;Humidity;Air pressure;Collection efficiency;Neutralization rate
期刊:
Stochastic Environmental Research and Risk Assessment
ISSN:
1436-3240
年:
2016
卷:
30
期:
8
页码:
2303-2308
基金类别:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11075049, 11375058]; Excellent Talents Program of Hengyang Normal University of China; Cooperative Innovation Center for Digitalization of Cultural Heritage in Ancient Villages and Towns; Construct Program of the Key Discipline in Hunan province
机构署名:
本校为第一且通讯机构
院系归属:
物理与电子工程学院
摘要:
The detection efficiency of electrostatic collection radon monitors is influenced by the humidity of the air in the collection cell. This is due to the recombination of positively charged 218Po with OH− ions, whose concentration depends on humidity. A novel design of an electrostatic collection cell, in which the air pressure in the cell is less than the atmospheric pressure, is proposed to eliminate the impact of humidity. As a result of the lower air pressure, the drift velocity of the positively charged 218Po in the electric field increases...

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