石油测井中子发生器辐射防护与安全管理

摘要

中子发生器是一种小型加速器中子源,它是脉冲中子测井仪器的一个关键部件,它是一种带放射源的射线装置,中子发生器本身含有放射性核素3H。本文通过石油测井中子发生器使用过程的特性,并根据测井现场跟踪测量,根据测量数据估算测井过程中工作人员和公众成员接受的最大年有效剂量,提出中子发生器测井应用中防护、管理的要点,供辐射管理部门和中子发生器使用部门参考。%Neutron generator is neutron source of a small accelerator,a key part of pulse neutron logging tool.Based on the characteristics in the usage of well logging neutron generator and measurement data at logging site,the maximum annual effective dose received by staff and public members during the logging process is estimated.The paper also presents key protection and management points in the logging application of neutron generator,for reference by radiation management agencies and users.