反冲距离法测核能级寿命的装置  

The Apparatus for Lifetime Measurement with Recoil Distance Method

作　　者：陈新峰[1] 郭应祥[1] 孙相富[1] 雷祥国[1] 周晓红[1] 刘忠[1] 金寒涓 刘明义[1] 罗亦孝[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《核电子学与探测技术》1996年第4期246-248,共3页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金

摘　　要：本文介绍了测量ｎｓ～ｐｓ量级核能级寿命的ｐｌｕｎｇｅｒ装置及对其有关性能的初步测试。用电容法标定了靶阻间的零点距，用激光反射偏转的方法测量了阻止膜运动的抖晃性。结果表明现加工的ｐｌｕｎｇｅｒ装置基本满足寿命测量的精度要求。针对原有装置的不足之处，我们作了改进。计划选用Ａ～１３０区域的核作为目标核来检验ｐｌｕｎｇｅｒ装置。A plunger system used to measure ns-ps range lifetimes of the nuclear energy levels is intreduced in this pa-per. The capacity measurement is used to determine the zero distance between the target foil and stop foil.Laserdeflection method is used to measure the sway of the stop foil.The results show that the plunger systern satisfiesthe need of the lifetime measurement.Some modification is made for the plunger system,and the object nuclei isselected to test the apparatus.(

关 键 词：电容法 激光反射 核能级寿命 反冲距离法 

分 类 号：O571.22[理学—粒子物理与原子核物理]