论文部分内容阅读
位置灵敏雪崩计数器(PSPP)是带有栅极的平行板雪崩计数器(PPAC),可用于重离子飞行时间法中的时间测量,它可以精确地提供时间信息和离子入射的位置信息。自七十年代中期开始已逐步应用于重离子物理中,而在测量较轻离子工作中使用尚少,其原因是因为轻离子在雪崩计数器窄的电极间隙中损耗能量较少,计数器输出的电子脉冲幅度亦小,造成时间分辨测量上的困难。本工作中,我们用 PPAC 对 α 粒
Position-sensitive avalanche counter (PSPP) is a parallel plate avalanche counter with grid (PPAC) for time measurement in the heavy ion time of flight method, which accurately provides time information and ion incident position information. Since the mid-seventies has been gradually applied to heavy ion physics, and in the measurement of lighter ion use is still less, the reason is because light ions in the avalanche counter narrow electrode gap less energy loss, the counter output of electrons Pulse amplitude is also small, resulting in time-resolved measurement difficulties. In this work, we use PPAC for alpha grains