Asymmetric multiwire proportional counter with thin quartz fibre spacers

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Using thin quartz fibres as insulating spacers, a simple way to reduce the anode-cathode gap is presented for a higher rate capability for a multiwire proportional counter. For a prototype counter using Phi 12-mu m anode wires and Phi 250-mu m quartz fibre spacers, we measured a gas gain of 1000 at an anode voltage of 700 V and a drift voltage of -300 V with an energy resolution of 22% FWHM in an Ar-CH4 (90/10) gas mixture. The gas gain remained stable up to a rate of 4 x 10(4) Hz/mm(2), which is a much higher rate than that obtained with a conventional MWPC.
Publisher
KOREAN PHYSICAL SOC
Issue Date
1996-12
Language
English
Article Type
Article
Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.29, no.6, pp.807 - 809

ISSN
0374-4884
URI
http://hdl.handle.net/10203/77445
Appears in Collection
NE-Journal Papers(저널논문)
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