EUROPEAN LABORATORY FOR PARTICLE PHYSICS CERN-PPE/97-21 8 January 1997 “DIAMOND” OVER-COATED MICROSTRIP GAS CHAMBERS FOR HIGH RATE OPERATION
EUROPEAN LABORATORY FOR PARTICLE PHYSICS CERN-PPE/97-21 8 January 1997 “DIAMOND” OVER-COATED MICROSTRIP GAS CHAMBERS FOR HIGH RATE OPERATION
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发表时间：
1997
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通讯作者：
A. Barr;B. Boimska;R. Bouclier;M. Capefins;W. Dominik;M. Hoch;G. Manzin;G. Million;L. Ropelewski
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作者：
A. Barr;B. Boimska;R. Bouclier;M. Capefins;W. Dominik;M. Hoch;G. Manzin;G. Million;L. Ropelewski
本文介绍了在拉制玻璃基片上制作类金刚石（DLC）涂层微带气室的最新进展。提出了在MSGC表面镀一层具有稳定和可控电阻率的DLC薄膜，以克服雪崩条件下表面充电对探测器工作的限制。这也为探测器制造技术带来了优势。沉积在制造的MSGC（外涂层）顶部的薄层显示出优异的机械性能和非常好的稳定性。我们报告了最近在D-263和AF 45玻璃基板上对DLC涂层MSGCs进行的各种表面电阻率（范围从10 Ω/Ω到10 Ω/Ω）的测量。外涂的MSGCs对于约10 Ω/Ω的表面电阻率表现出良好的倍率性能。已证明雪崩累积电荷高达50 mC/cm的稳定操作。论文由W. Dominik在第五届先进技术和粒子物理国际会议上，意大利科莫，Villa Olmo，1996年10月7日至11日a法国巴黎国立物理与化学工业学院b波兰华沙大学实验物理研究所c意大利帕多瓦，INFN Legnaro d法国穆尔豪斯，上阿尔萨斯大学GRPHE
We describe the recent developments on the diamond-like carbon (DLC) over-coated Microstrip Gas Chambers made on drawn glass substrates. MSGC surface coating with thin DLC layer of stable and controlled resistivity was proposed to overcome the limitation of detector operation due to surface charging-up under avalanches. This brings also advantages for the detector manufacturing technology. The thin layer, deposited on top of a manufactured MSGC (over-coating), demonstrates xcellent mechanical properties and very good stability. We report on recent measurements with DLC over-coated MSGCs of various surface resistivities (ranging from 10 Ω/❒ to 10Ω/❒ ) on D-263 and AF45 glass substrates. Overcoated MSGCs exhibit good rate capability for the resistivity of the surface around 10 Ω/❒ . Stable operation up to 50 mC/cm of accumulated charge f om avalanches has been demonstrated. Paper presented by W. Dominik at the 5th International Conference on Advanced Technology and Particle Physics, Villa Olmo, Como, Italy Oct. 7-11, 1996 a Ecole Nationale de Physique et de Chimie Industrielle de Paris, France b On leave of absence from Institute of Experimental Physics, University of Warsaw, Poland c INFN Legnaro, Padova, Italy d GRPHE, Université de Haute Alsace, Mulhouse, France