标题： MSGC 开发用于 HERA-B 显示英文标题

标题： MSGC Development for HERA-B

摘要： HERA-B实验的内跟踪系统由184个微条气体室（MSGC）组成，总共有147 456个电子读出通道。这些探测器必须应对高达25 kHz/mm**2的粒子通量，并能承受每年1 Mrad的辐射剂量。在这些腔室的开发过程中发现，传统的MSGC在强核子通量下运行时，由于感应放电而迅速被破坏。引入气体电子倍增器（GEM）作为预放大结构，提供了构建坚固可靠探测器的可能性，使其能够在HERA-B的恶劣环境中拥有充足的增益储备。 显示英文摘要

摘要： The Inner Tracker System of the HERA-B experiment at DESY consists of 184 Microstrip Gas Chambers (MSGC) with a total number of 147 456 electronic read out channels. The detectors have to cope with particle fluxes up to 25 kHz/mm**2 and to tolerate radiation doses of 1 Mrad per year. During the development of these chambers it was found that conventional MSGC, operated in intenses hadronic fluxes, are rapidly destroyed due to induced discharges. The introduction of a Gas Electron Multiplier (GEM) as pre-amplification structure offers the possibility to build robust and reliable detectors allowing for ample gain reserve in the hostile environment of HERA-B.