【摘要】 本文介绍了近几年发展起来的一种新型定时探测器——平行板雪崩计数器的特点及制作工艺。我们研制的一台灵敏面积为30×40mm~2、极间距为2.1mm的快定时平行板雪崩计数器,当工作气体为26Torr异丁烷,工作电压为1200V时得到570ps的时间分辨率。更多还原

【Abstract】 The building technique and performance of the parallel plate avalanche counter (PPAC) were presented Our PPAC has 30×40mm2 of sensitive area and2.1mm of gap. When working voltage was 1200V and 28 Torr isobutane was used as operating gas, a 570ps of time resolution was obtained for Th’ C α source.更多还原