Physics – Instrumentation and Detectors
Scientific paper
2010-03-05
Instrum.Exp.Tech.53:653-656,2010; Prib.Tekh.Eksp.5:37-40,2010
Physics
Instrumentation and Detectors
4 pages, 9 figures
Scientific paper
10.1134/S0020441210050064
A novel and relatively simple method of production of electrodes for a multi-channel wire gas multiplier is developed. Two modifications of the multipliers have been tested: with a multiplication of electrons between two wire electrodes, MWGEM, and between a wire electrode and continuous anode, MWCAT. For both MWGEM and MWCAT detectors, filled with neon under pressure of 760 Torr and irradiated by beta-particles (Ni-63), the coefficient of proportional multiplication of electrons up to 10000 was obtained. For the MWGEM detector irradiated by alpha-particles (Pu-239), the coefficient of proportional multiplication of 300 was obtained. It is observed, that in contrast to the GEM detectors, produced by perforation of a metal-clad plastic foil, in a MWGEM the discharges do not destroy its electrodes even for the potentials above the threshold of discharges. The results on operation of the MWCAT filled with Ar, Ar+CH4 and Ar+1% Xe are also presented.
Ovchinnikov B. M.
Ovchinnikov Yu. B.
Parusov V. V.
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