【作者】 王海云； 祁辉荣； 张余炼； 温志文； 张建； 陈元柏； 欧阳群；

【Author】 WANG Hai-yun;QI Hui-rong;ZHANG Yu-lian;WEN Zhi-wen;ZHANG Jian;CHEN Yuan-bo;OUYANG Qun;State Key Laboratory of Particle Detection and Electronics;Institute of High Energy Physics,Chinese Academy of Sciences;Graduate University of Chinese Academy of Sciences;School of Nuclear Science and Technology,Lanzhou University;

【机构】 核探测与核电子学国家重点实验室； 中国科学院高能物理研究所； 中国科学院大学； 兰州大学核科学与技术学院；

【摘要】 随着国际上对于希格斯粒子的精确测量提出更高的物理要求,对不同模式对撞中探测器性能,特别是气体径迹探测器TPC中正离子反馈抑制等,所面临的问题和解决方案需要进行深入研究。环形对撞与直线对撞具有不同的对撞模式和束流时间结构,直线对撞可以采用开关门控的方式完成对于大量正离子的抑制;而环形对撞连续时间结构(～4μs或者更短)使得探测器需要长时间连续工作,正离子无法采用门控进行反馈抑制,因此采用复合气体探测器结构来实现探测器工作的同时,进行正离子连续抑制。本文主要深入分析了环形对撞机与直线对撞机中气体径迹探测器面临的不同问题,进行了方案分析、原型探测器研制和前期的初步模拟研究。更多还原

【Abstract】 The accurate measurement of Higgs is bringing us much more higher physical requirements. We need to deal with many problems of the detectors in different collision models, especially the IBF(ion backflow) in the Time Projection Chamber. The circular collider is different with the linear collider in the collision model and the beam structure. The linear collider can use the controlled gating to reduce the IBF. But the circular collider’s beam structure is consecutive, working in a long time operation and nonstop model, with 4μs--a shorter time interval, cannot adopt the controlled gating to reduce the IBF. So we propose an approach that using the hybrid detector to realize the detection and reduce the IBF in the same time. In this paper, it mainly described the problems between the circular collider and the linear collider, and then proposed the analysis method, the research of the prototype-detector and the preliminary simulation work.更多还原