期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

被动沉积法测量^(222)Rn/^(220)Rn子体浓度 被引量：3

Study on Deposition-Based Measurement Method of ^(222)Rn/^(220)Rn Progeny Concentration
下载PDF
导出
摘要 被动沉积式222 Rn/220 Rn(Rn/Tn)子体测量对于现场环境Rn/Tn子体浓度调查和环境Rn/Tn暴露剂量评价具有重要意义。本工作利用自行开发的被动沉积式Rn/Tn子体测量仪,对被动沉积式Rn/Tn子体浓度测量方法进行了初步研究,探讨了其基本原理,并分析了其影响因素。研究表明,在粗略反映同一类型环境不同房屋Rn/Tn子体暴露水平差别的情况下,被动沉积法可用于Rn/Tn子体浓度的现场测量。暴露90d时,本被动沉积式Rn/Tn子体测量仪测量Rn/Tn子体的探测下限分别为0.234Bq.m-3和0.424Bq.m-3。若将其应用于不同现场环境Rn/Tn子体浓度测量与暴露剂量评价,还需对该方法进行深入细致的研究。 The passive integrated radon and thoron progeny measurement is quite important for the field survey and dose evaluation of 222Rn/220Rn（Rn/Tn） exposure in environment.This study concentrates on the deposition-based measurement method.The base principle was discussed,and the influence factors were analyzed.Using the newly developed deposition-based passive Rn/Tn progeny monitor,a series of experiment comparisons were carried out.The results show that only in reflecting the difference of Rn/Tn exposure in different environments,this method can be used for field measurement.The low level detection limits of self-made device for Rn/Tn progeny concentration are 0.234 Bq·m-3 and 0.424 Bq·m-3 respectively when exposure for 90 days.There are still a lot of improvement works needed in the future to apply this method for field measurement and dose evaluation of Rn/Tn exposure in different environments.
作者 张磊 郭秋菊 马新华 魏星
机构地区 中国人民解放军防化研究院第二研究所 北京大学物理学院核科学与核技术国家重点实验室
出处 《原子能科学技术》 EI CAS CSCD 北大核心 2013年第6期1029-1034,共6页 Atomic Energy Science and Technology
基金 国家自然科学基金资助项目(11205241)
关键词 222Rn 220Rn子体 被动沉积法 沉降速度 222Rn/220Rn progeny deposition-based measurement method deposition velocity
分类号 TL72 [核科学技术—辐射防护及环境保护] TL815 [核科学技术—核技术及应用]
  • 相关文献

参考文献21

  • 1ICRP. Lung cancer risk from radon and progeny and statement on radon, ICRP publication 115[R]. Sweden.. ICRP, 2010.
  • 2UNSCEAR. Annex E: Sources-to-effects assess ment for radon in homes and workplaces [R]. New York: UNSCEAR, 2009.
  • 3FLEISCHER R L. Theory of passive measure- ment of radon daughters and working levels by the nuclear track technique[J]. Health Physics, 1984, 47: 263-270.
  • 4NIKEZIC D, BAIXERAS C. Radon, radon progeny and equilibrium factor determination using LR-115 detector [J]. Radiation Measure- ments, 1996, 26: 203-213.
  • 5da SILVA A A R, YOSHIMURA E M. Verifi- cation of radioactive equilibrium to discriminate radon and progeny with LR-115 under thin film geometry[J].Radiation Measurements, 2005, 39.. 617-620.
  • 6ZHUO W H, IIDA T. Estimation of thoron progeny concentrations in dwellings with their deposition rate measurements[J].Journal of Health Physics, 2000, 35.. 365-370.
  • 7MISHRA R, MAYYA Y S. Study of a deposi- tion-based direct thoron progeny sensor (DTPS) technique for estimating equilibrium equivalent thoron concentration (EETC) in indoor environ- ment[J]. Radiation Measurements, 2008, 43: 1 408-1 416.
  • 8MISHRA R, MAYYA Y S, KUSHWAHA H S. Measurement of 220Rn/222 Rn progeny deposition velocities on surfaces and their comparison with theoretical models [J]. Aerosol Science, 2009, 40: 1-15.
  • 9MISHRA R, PRAJITH R, SAPRA B K, et al. An integrated approach for the assessment of the thoron progeny exposures using direct thoron progeny sensors[J]. Radiation Protection Dosim- etry, 2010, 141: 363-366.
  • 10UNSCEAR. Sources and effects of ionizing radi- ation[M]. Sweden: UNSCEAR, 2000.

二级参考文献17

  • 1李德平,胡逢全.置信区间与探测下限[J].辐射防护,1994,14(4):303-318. 被引量：12
  • 2National Research Council (NRC). Comparative dosime- try of radon in mines and homes[M]. Washington, DC: National Academy Press. 1991: 1-7.
  • 3United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). Sources and ef- fects of ionizing radiation [R]. United Nations, New York, 1993: 52-53.
  • 4Porstendorfer J. Influence of physical parameters on doses from radon exposures[J]. International Congress Series, 2000, 1 225: 149-160.
  • 5Chamberlain AC, Dyson ED. The dose to the tra- chea and bronchi from the decay products of radon and thoron [J]. British Journal of Radiology, 1956, 29: 317-325.
  • 6Hopke PK. Some thoughts on the "Unattached" faction of radon decay products[J]. Health Physics, 1992, 63: 209-212.
  • 7Wasiolek PT, James AC. Unattached fraction mea- suring technique and radon lung dose[J]. Journal of Environment Radioactivity, 2000, 51:137-151.
  • 8Reineking A, Porstendorfer J. "Unattached" frac- tion of short-lived Rn decay products in indoor and outdoor environments: an improved single-screen method and results[J]. Health Physics, 1990, 58: 715-727.
  • 9Reineking A,Knutsion EA, George AC, et al. Sizedistribution of unattached and aerosol-attached short- lived radon decay products: some results of inter- comparison measurements [J]. Radiation Protec-tion Dosimetry, 1994, 56:113-118.
  • 10Huet C, Tymen G, Boulaud D. Size distribution, e- quilibrium ratio and unattached fration of radon de- cay products under typical indoor domestic condi- tions [J]. The Science of the Total Environment, 2001, 272: 97-103.

共引文献36

同被引文献5

引证文献3

二级引证文献2

原子能科学技术
2013年 第6期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部