激光分离铀同位素分离器的设计及应用  

DESIGN AND APPLICATION OF THE SEPARATOR OF AVLIS

作　　者：李自卫[1] 王新[1] 潘文杰[1] 于贵明[1] 费林[1] 

机构地区：[1]天津核工业理化工程研究院,300180

出　　处：《真空科学与技术》1996年第5期329-335,共7页Vacuum Science and Technology

摘　　要：描述了用DMP－450型镀膜机改造、设计成应用于激光铀同位素分离的分离器装置。选用6000W电子枪作为加热源，产生激光同位素分离实验所需的铀蒸气，对激光与铀原子相互作用区中的铀原子密度进行了估算。讨论了在蒸发中，由多普勒效应引起的话线加宽及热离子等对分离实验的影响因素和排除方法。还对高温下液态铀的强腐蚀性、加热坩埚和屏蔽罩的实验选择等方面进行了有益的探讨。In this paper, we introduce an experimental set-up, which is rebuilt on the basis of typeDMP-450 coater and applied to AVLIS(atomic vapour laser isotope separation). As a heater,it producesuranium atomic vapour to AVLIS and the output power of the electron gun is 6 000 W. We have estimatedthe density of the uranium atomic vapour,which is in the laser action area. We have discribed the Dopplerbroadering,the influence of thermion on AVLIS and the elimination ect. We have also discussed the corrosivity of liquid uranium at high temperature and the crucible and shielding cover, which are adapted toAVLIS,and are selected by experiments.

关 键 词：激光原子法 同位素分离 分离器 铀原子束 

分 类 号：TL253.08[核科学技术—核燃料循环与材料] TL922