Multi-channel gas electron multiplier with metallic electrodes

Details Multi-channel gas electron multiplier with metallic electrodes Multi-channel gas electron multiplier with metallic electrodes

2010-06-15

arxiv.org/abs/1006.2986v2

Physics

Instrumentation and Detectors

9 pages, 4 figures, 1 table

Scientific paper

The design of multi-channel gas electron multiplier (MGEM) with metallic electrodes is proposed, produced and tested. The electrodes of MGEM are produced from the brass plates with thickness of 1 mm, round openings of 1 mm in diameter and 1.5 mm steps between them. The gap between the electrodes is equal to 3 mm, while the total working area has a diameter of 20 mm. The neon gas fillings of the MWGEM chamber with micro admixtures of N_2 and H_2O have been tested. The total maximal coefficient of proportional multiplication of electrons in neon with admixture of (H_2O+N_2)<100 ppm of 30000 is obtained.

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