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Article: Influence of thoron on measurement results of radon exhalation rate

TitleInfluence of thoron on measurement results of radon exhalation rate
Authors
KeywordsExhalation Rate
Radon
Sensitive Measurement
Thoron
Issue Date2002
Publisher中國原子能科學研究院. The Journal's web site is located at http://yzjs.chinajournal.net.cn/
Citation
Yuanzineng Kexue Jishu/Atomic Energy Science And Technology, 2002, v. 36 n. 6, p. 543-547 How to Cite?
AbstractBecause of thoron exhalation, the measurement results of radon exhalation rate using a local still method is usually larger than the true value of radon flux rate of the monitored material surface. The influence of 216Po (ThA) on radon exhalation rate can be eliminated for sensitive radon monitors. Theoretical evaluations of the influence of 212 Bi (ThC) and 212 Po(ThC') on radon exhalation rate are carried out in a sampler with diameter of 188 mm, and height of 125 mm, and supplied electrostatic field inside (generated by high voltage and electret) under following conditions: the sampling time are 1, 2, 3 h, respectively, thoron exhalation rate is 100 times of radon's. The calculation results indicate that the measurement results of radon flux rate are possible 35.5% larger than true value due to the influence of thoron for fast and multifunctional radon monitors with electret, high voltage, respectively and using CR-39 SSNTD as detector, but this influence is negligible for PCMR-1 passive and continuous radon monitor using a silicon surface barrier as detector.
Persistent Identifierhttp://hdl.handle.net/10722/174832
ISSN
2015 SCImago Journal Rankings: 0.234

 

DC FieldValueLanguage
dc.contributor.authorXiao, DTen_US
dc.contributor.authorLeungen_US
dc.contributor.authorZhao, GZen_US
dc.contributor.authorLing, Qen_US
dc.date.accessioned2012-11-26T08:47:43Z-
dc.date.available2012-11-26T08:47:43Z-
dc.date.issued2002en_US
dc.identifier.citationYuanzineng Kexue Jishu/Atomic Energy Science And Technology, 2002, v. 36 n. 6, p. 543-547en_US
dc.identifier.issn1000-6931en_US
dc.identifier.urihttp://hdl.handle.net/10722/174832-
dc.description.abstractBecause of thoron exhalation, the measurement results of radon exhalation rate using a local still method is usually larger than the true value of radon flux rate of the monitored material surface. The influence of 216Po (ThA) on radon exhalation rate can be eliminated for sensitive radon monitors. Theoretical evaluations of the influence of 212 Bi (ThC) and 212 Po(ThC') on radon exhalation rate are carried out in a sampler with diameter of 188 mm, and height of 125 mm, and supplied electrostatic field inside (generated by high voltage and electret) under following conditions: the sampling time are 1, 2, 3 h, respectively, thoron exhalation rate is 100 times of radon's. The calculation results indicate that the measurement results of radon flux rate are possible 35.5% larger than true value due to the influence of thoron for fast and multifunctional radon monitors with electret, high voltage, respectively and using CR-39 SSNTD as detector, but this influence is negligible for PCMR-1 passive and continuous radon monitor using a silicon surface barrier as detector.en_US
dc.languageengen_US
dc.publisher中國原子能科學研究院. The Journal's web site is located at http://yzjs.chinajournal.net.cn/en_US
dc.relation.ispartofYuanzineng Kexue Jishu/Atomic Energy Science and Technologyen_US
dc.subjectExhalation Rateen_US
dc.subjectRadonen_US
dc.subjectSensitive Measurementen_US
dc.subjectThoronen_US
dc.titleInfluence of thoron on measurement results of radon exhalation rateen_US
dc.typeArticleen_US
dc.identifier.emailLeung: jkcleung@hku.hken_US
dc.identifier.authorityLeung=rp00732en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0036880487en_US
dc.identifier.volume36en_US
dc.identifier.issue6en_US
dc.identifier.spage543en_US
dc.identifier.epage547en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridXiao, DT=7201474203en_US
dc.identifier.scopusauthoridLeung=24080627200en_US
dc.identifier.scopusauthoridZhao, GZ=10045258200en_US
dc.identifier.scopusauthoridLing, Q=8230169100en_US

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