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arXiv · physics/9807039

Carbon Coated Gas Electron Multipliers

S. Beirle·U. Werthenbach·G. Zech·T. Zeuner
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Abstract

Gas electron multipliers (GEMs) have been overcoated with a high resistivity 10e14 - 10e15 Ohms / square amorphous carbon layer. The coating avoids charging up of the holes and provides a constant gain immediately after switching on independent of the rate. The gain uniformity across the GEM is improved. Coating opens the possibility to produce thick GEMs of very high gain.

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S. Beirle, U. Werthenbach, G. Zech, T. Zeuner. 1998-07-22. Carbon Coated Gas Electron Multipliers. https://doi.org/10.1016/s0168-9002(98)01315-1

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