CAJ | 학술논문

采用蒙特卡罗软件MCNP5程序建立挖掘机安全作业舱及内部驾驶人员实验模型，研究在辐射源(钴-60)类型不同和源距不同的情况下，不同材料及不同结构的安全作业舱屏蔽γ射线的能力.分析讨论人体各部位剂量率值以评价安全作业舱的屏蔽效果，并依据电离辐射防护与辐射源安全基本标准( GB18871—2002)规定的工作人员的照射水平应低于0.01 mSv/h的剂量限值，确定安全作业舱结构的设计方案.此次研究为挖掘机驾驶舱屏蔽设计提供必要的研究数据和设计依据，使驾驶舱在野外高放射环境下能够有效地屏蔽酌射线，保护驾驶人员的辐射屏蔽安全.
채용몽특잡라연건MCNP5정서건립알굴궤안전작업창급내부가사인원실험모형，연구재복사원(고-60)류형불동화원거불동적정황하，불동재료급불동결구적안전작업창병폐γ사선적능력.분석토론인체각부위제량솔치이평개안전작업창적병폐효과，병의거전리복사방호여복사원안전기본표준( GB18871—2002)규정적공작인원적조사수평응저우0.01 mSv/h적제량한치，학정안전작업창결구적설계방안.차차연구위알굴궤가사창병폐설계제공필요적연구수거화설계의거，사가사창재야외고방사배경하능구유효지병폐작사선，보호가사인원적복사병폐안전.
Excavator safety chamber for work and internal driver experimental models are constructed in a Monte Carlo program MCNP5 code, and the different types of radiation source and various of sources have effect on the dose ratios of different parts of human. In different situations, the different materials and different structure of security chamber for work can also affect the ability of shielding gamma rays performance. This paper analyzes the dose ratios of every part of human body to evaluate the shielding gamma rays perform-ance of safety chamber for work. On the basis of ionizing radiation protection and radioac-tive source security basic standards (GB18871—2002),the workers exposed to gamma ra-diation should absorb the dose ratios which is less than 0 . 01 mSv/h and the structure de-sign of chamber must meet the goal to protect the drivers. The study of excavator cockpit shielding design provides essential data for further study and provides the basis of design. Above all,the study makes the cockpit with exposures to the field of high gamma radiation safe and protect the driver from gamma radiation.