自发裂变源 meaning in Chinese

spontaneous fission source

The experiment was carried out at the lawrence berkeley national laboratory ( u . s . a ) . a 252cf was placed at the center of the gammasphere detector array which , for this experiment , consisted of 102 compton - suppressed ge detectors . by measuring prompt - ray of spontaneous fission from 252cf , a total of 5 . 7 1011 triple - and higher - fold coincidence events were collected
实验工作是在美国洛仑兹伯克利国家实验室（ lbnl ）的gammasphere探测装置上完成的， 252cf自发裂变源放置在一个由102个反康ge探测器组成的gammasphere探测器阵列的中心，测量自发裂变产生的瞬发谱，记录三重以上的符合事件。