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Study of capillary-based gaseous detectors

C. Iacobaeus·T. Francke·M. Danielsson·J. Ostling·V. Peskov
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Abstract

We have studied gain vs. voltage characteristics and position resolutions of multistep capillary plates (two or three capillary plates operating in a cascade), as well as capillary plates operating in a mode when the main amplification occurs between plates or between the capillary plate and the readout plate (parallel plate amplification mode). Results of these studies demonstrated that in the parallel-plate amplification mode one can reach both high gains (>100000) and good position resolutions (~100 micro meter) even with a single step arrangement. It offers a compact amplification structure, which can be used in many applications. For example, in preliminary tests we succeeded to combine it with a photocathode and use it as a position sensitive gaseous photomultiplier. CsI coated capillary plates could also be used as a high position resolution and high rate X-ray converter.

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C. Iacobaeus, T. Francke, M. Danielsson, J. Ostling, V. Peskov. 2004-03-23. Study of capillary-based gaseous detectors. https://doi.org/10.1109/tns.2004.829371

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