介绍了充气反冲谱仪上的位置灵敏探测器的工作原理及测试过程,并对已有的能量及位置刻度方法进行了改进,得到各硅条对8.785 MeVα粒子的能量分辨为40 ～ 80keV (FWHM),位置分辨小于1mm(FWHM).利用该探测器观察到了24Mg +232Th实验中产生的长寿命反应产物227Th的α衰变链.%It introduced the working principle and testing process of the position sensitive detector on the gas -filled recoil separator. The previous methods of energy and position calibrations have been improved. The measured energy resolution of each silicon strip was 40-80 keV ( FWHM) for 8.785 MeV α particles and position resolution was < 1 mm (FWHM). The correlated α decay chains of 227Th, which were produced by 24Mg + 232 Th, were observed by the detector.
展开▼
