摘要
自20世纪90年代以来,GEM探测器以其高电子倍增、高空间分辨和高计数率等优势在粒子物理和辐射成像等领域得到了广泛和深入的研究,具有广阔的应用前景．如果将GEM作为读出探测器应用在时间投影室TPC系统上,和传统的读出方式比较起来,既有许多优点也有许多挑战．目前世界上有许多机构正在研究将此方案用于将来的大型正负电子对撞机ILC．本文论述了这些研究课题的概况,讨论了TPC的各项关键性能指标与GEM探测器的关系及存在的问题．
Since its invention in 1990s, GEM has drawed great attention and wide studies in the field of particle physics and radiation imaging because of its high gain, high position resolution and high cout-rate capbility, many applications have been proposed, especially for the readout of TPC. Compared with traditional readout detector, mainly MWPC （Multi-wire proportional chamber）, GEM has many advantages and also a lot of challenges. Many institutes are carrying comprehensive R＆D of TPC based on GEM readout in order to evaluate whether it can meet the unprecedented requirement of future ILC. This paper reviews their recent result.
出处
《高能物理与核物理》
CSCD
北大核心
2007年第2期223-227,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金(10575063)资助~~
