CAJ | 학술논문

介绍了一种新的直接测量重超核寿命的方法．并对其中用到的一个重要探测设备——裂变碎片靶室——在托马斯·杰斐逊国家实验室用252Cf放射源进行了测试．该靶室的单模块时间分辨率为~163ns．在此分辨率的基础上，计算机模拟表明用此方法测到的超核寿命误差将在9．6ps左右．
개소료일충신적직접측량중초핵수명적방법．병대기중용도적일개중요탐측설비——렬변쇄편파실——재탁마사·걸비손국가실험실용252Cf방사원진행료측시．해파실적단모괴시간분변솔위~163ns．재차분변솔적기출상，계산궤모의표명용차방법측도적초핵수명오차장재9．6ps좌우．
In this paper a new method to measure the lifetime of heavy hypernuclei is introduced,and the main device used in the measurement-fission fragment chamber(FFC)-is tested by a 252Cf spontaneous source at Thomas Jefferson National Accelerator Facility(JLab).The chamber has a single-module timing resolution of～163ps.Based on the timing resolution tested,our computer simulation predicts that the error of the measured lifetime is about 9.6ps.