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为了解测井职业人员的中子个人剂量,于2013年4—10月采用CR39中子个人剂量计和固体核径迹技术,对某石油测井公司436名职业人员的半年中子个人剂量水平进行监测,结果显示测井职业人员半年人均中子个人剂量为0.56 mSv;管理、监督及操作岗位个人剂量分别为0.40、0.28和0.61 mSv,岗位间具有统计学意义(P<0.01);接触射线工龄<10、10~、20~及>30年的工作人员个人剂量分别为0.65、0.51、0.43和0.34mSv,组间具有统计学意义(P<0.05)。提示本次调查的测井工作人员半年的中子个人剂量处于低水平状态,应关注操作岗位和接触射线工龄较短的测井人员。
In order to understand the personal dose of neutron for well logging professionals, the CR39 neutron personal dosimeter and solid-core track technique were used in April-October 2013 to measure the individual dose level of half a year neutrons of 436 professionals in an oil logging company The results showed that the personal average per capita neutron dose of logging workers was 0.56 mSv in the first half of the year. The individual doses of management, supervision and operation were 0.40, 0.28 and 0.61 mSv respectively, with statistically significant differences (P <0.01) The individual dose of working staff <10, 10 ~, 20 ~ and> 30 years were 0.65,0.51,0.43 and 0.34mSv, respectively, with statistical significance (P <0.05). It is suggested that the logging staff of this survey had a low level of individual neutron doses for six months and should pay attention to the operation posts and the logging personnel with short service lives.