Study of 2D interpolating readout for a micro-pattern gaseous detector  

作　　者：董明义 修青磊 刘荣光 张建 欧阳群 陈元柏 

机构地区：[1]State Key Laboratory of Particle Detection and Electronics [2]Institute of High Energy Physics,Chinese Academy of Sciences [3]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Physics C》2013年第2期44-48,共5页中国物理C（英文版）

摘　　要：The two-dimensional interpolating readout, a new readout concept based on resistive anode structure, was studied for the micro-pattern gaseous detector. Within its high spatial resolution, the interpolating resistive readout structure leads to an enormous reduction of electronic channels compared with pure pixel devices, and also makes the detector more reliable and robust, which is attributed to its resistive anode relieving discharge. A GEM （gaseous electron multiplier） detector with 2D interpolating resistive readout structure was set up and the performance of the detector was studied with ^55Fe 5.9 keV X-ray. The detector worked stably at the gain up to 3.5 × 104 without any discharge. An energy resolution of about 19%, and a spatial resolution of about 219 μm （FWHM） were reached, and good imaging performance was also obtained.The two-dimensional interpolating readout, a new readout concept based on resistive anode structure, was studied for the micro-pattern gaseous detector. Within its high spatial resolution, the interpolating resistive readout structure leads to an enormous reduction of electronic channels compared with pure pixel devices, and also makes the detector more reliable and robust, which is attributed to its resistive anode relieving discharge. A GEM （gaseous electron multiplier） detector with 2D interpolating resistive readout structure was set up and the performance of the detector was studied with ^55Fe 5.9 keV X-ray. The detector worked stably at the gain up to 3.5 × 104 without any discharge. An energy resolution of about 19%, and a spatial resolution of about 219 μm （FWHM） were reached, and good imaging performance was also obtained.

关 键 词：interpolating readout resistive anode readout structure micro-pattern gaseous detector GEM 

分 类 号：TL811[核科学技术—核技术及应用]