A wire GEM (WGEM) detector with a gas gap between meshes was constructed. The detector provides the amplification 5x10E5 for the gas mixture of Ar +20% CO2 at atmospheric pressure. As compared with well-known GEM detectors produced by perforation the plastic plate metalized on both sides the WGEM does not suffer from breakdowns between its electrodes and the effect of accumulation of charges on holes walls is absent. As a result the WGEM has high reliability and stability.
@article{arxiv.0911.4811,
title = {Wire GEM detector},
author = {B. M. Ovchinnikov and V. I. Razin and A. I. Reshetin and S. N. Filippov},
journal= {arXiv preprint arXiv:0911.4811},
year = {2009}
}
Comments
Presented at the RD51 Collaboration Meeting, CERN, November 2009, submitted to the Prib. Tech. Exper