Estimation on annual effective dose equivalent for whole-body exposed staff in uranium exploration

Nuclear radiation from ²²⁶Ra radiation sources No.6 or No.5 used in γ logging probe or geophysical documentation instrument and ¹³⁷Cs radiation sources used at density logging may cause harm to the human body without protection. This article systematically introduces the estimation to nuclear radiation of γ radiation sources personal effective dose equivalent to whole body exposed staff in uranium exploration, which will provide a guidance to the radiation protection for the staff. (author)