GEM Operation in Negative Ion Drift Gas Mixtures
arXiv:physics/0310124 · doi:10.1016/j.nima.2004.02.018
Abstract
The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in carbon disulfide vapor at low pressure, and in mixtures of carbon disulfide with Argon and Helium, some near 1 bar total pressure.
7 pages, 3 figures