Novel fused-silica charge detection tile for particle detectors  

作　　者：Wu-Rong Cen Xiao-Meng Wu Li-Qiang Cao Qi-Dong Wang Liang-Jian Wen 

机构地区：[1]University of Chinese Academy of Sciences,Beijing 100049,China [2]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [3]Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China [4]State Key Laboratory of Particle Detection and Electronics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Radiation Detection Technology and Methods》2019年第2期22-26,共5页辐射探测技术与方法（英文）

基　　金：Program of International S&T Cooperation of MoST(2015DFG02000);CAS-IHEP Fund for PRC-US Collaboration inHEP,CAS Center for Excellence in Particle Physics(CCEPP).

摘　　要：Purpose Develop a novel charge-detecting tile for future large-scale liquid xenon TPC for searching for neutrinoless doublebeta decay.Methods Use advanced microelectronic technologies to fabricate small metal pads on a fused-silica wafer.The pads are chained into orthogonal strips,and the strips are isolated at the cross sections.The size of the pads defines the pitch between parallel strips and can be flexibly tuned according to any optimized dimension from future Monte Carlo studies.Such tile also has good potential to suppress the radioactivity and control electronics noise.Furthermore,its modular design allows to easily cover a large size.Results The design and performance have been demonstrated by a prototype tile,particularly by comprehensive tests in liquid xenon.Conclusions A new design of charge detection tile and the fabrication technologies have been developed,which would be useful for future noble liquid detectors.

关 键 词：Time projection chamber(TPC) Charge collection Double-beta decay Microelectronic processing 

分 类 号：R68[医药卫生—骨科学]