期刊论文、会议论文

Xiao, Detao

英文

Journal of Environmental Radioactivity

0265-931X

2017

178-179

77-83

14th Biennial Conference of the South-Pacific-Environmental-Radioactivity-Association (SPERA)

SEP 05-09, 2016

Bali, INDONESIA

[He, Zhengzhong;Xiao, Detao;Lv, Lidan;Zhou, Qingzhi;Shan, Jian;Qiu, Shoukang;Wu, Xijun] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.

S Pacific Environm Radioact Assoc

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

ELSEVIER SCI LTD

10.1016/j.jenvrad.2017.07.011

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11475082]

本校为第一且通讯机构

It is necessary to establish a reference atmosphere in a thoron chamber containing various ratios of212Bi to212Pb activity concentrations (C(212Bi)/C(212Pb)) to simulate typical environmental conditions (e.g., indoor or underground atmospheres). In this study, a novel method was developed for establishing and controlling C(212Bi)/C(212Pb) in a thoron chamber system based on an aging chamber and air recirculation loops which alter the ventilation rate. The effects of main factors on the C(212Bi)/C(212Pb) were explored, and a steady-state theoretical model was derived to calculate the ratio. The...