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Calibration of a 220Rn flow-through source

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成果类型:
期刊论文
作者:
Qiu, S.*
通讯作者:
Qiu, S.
作者机构:
[Qiu, S.] Nanhua Univ, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
[Qiu, S.] Nanhua Univ, Sch Nucl Sci & Technol, 28 Chang Sheng Rd, Hengyang 421001, Hunan, Peoples R China.
通讯机构:
[Qiu, S.] N
Nanhua Univ, Sch Nucl Sci & Technol, 28 Chang Sheng Rd, Hengyang 421001, Hunan, Peoples R China.
语种:
英文
期刊:
Radiation and Environmental Biophysics
ISSN:
0301-634X
年:
2006
卷:
45
期:
3
页码:
215-220
机构署名:
本校为第一且通讯机构
院系归属:
核科学技术学院
摘要:
Two reference methods have been established to calibrate the yield of a self-made 220Rn flow-through source. These reference methods include (a) a small scintillation cell flow-through method and (b) a gamma spectrometry method that takes advantage of an activated charcoal. The methods were validated theoretically and experimentally including intercomparison measurements. It is shown that the source is stable with a relative deviation less than 2.5% over 5 years, when the relative humidity ranged from 50 to 90%, and the temperature from 5 to 38°C. The 220Rn monitor used in these reference ...

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