Doses from external exposure at workplace in non-uranium mines in China
10.3760/cma.j.issn.0254-5098.2009.02.022
- VernacularTitle:我国非铀矿山工作场所γ外照射剂量估算
- Author:
Qing ZHANG
;
Cuihua XU
;
Jing ZHANG
;
Qiang ZHOU
;
Li ZHAO
;
Wenhong LI
;
Tianshan REN
;
Xu SU
- Publication Type:Journal Article
- Keywords:
Non-uranium mine;
Gamma spectrometry;
Gamma exposure;
Annual effective dose
- From:
Chinese Journal of Radiological Medicine and Protection
2009;29(2):180-183
- CountryChina
- Language:Chinese
-
Abstract:
Objective To estimate the dose to non-uranium miners from external exposure.Methods Ore samples of non-uranium mines were collected in site and analyzed with gamma spcetrometry,then annual dose to the miners was estimated based on the measured radioactivities of radionuclides.Results Thirty-two ore samples in thirteen mines in seven provinces were collected and analyzed.Among them,radioactivity concentrations in two samples were higher than others,and the annual doses from external exposure to the radionuclides in the two ore samples were estimated to be higher than 1 mSv/a.Conclusions Gamma spectrometry is fit for determining the radionuclides concentrations and its results can be used for estimating dose from external exposure in non-uranium mines.
