Gas electron multiplier based on laser-perforated CVD diamond film:   First tests
  Gas electron multiplier (GEM) is widely used in modern gas detectors of ionizing radiation in experiments on high-energy physics at accelerators and in other fields of science. Typically the GEM devices are based on a dielectric foil with holes and electrodes on both sides. GEMs made by radiation-hard dielectrics or wide band-gap semiconductors are desirable for some applications. The results of the first tests of the gas electron multiplier made of radiation-hard materials, such as polycrystalline CVD diamond with a thickness of 100 microns is described. Here we report on fabrication of GEM based on free-standing polycrystalline CVD diamond film and its first test. 
S. Franchino, M. Negodaev, A. Bolshakov, E. Ashkinazi, Y. Kalkan, A.   Popovich, M. Komlenok, V. Sosnovtsev, V. Ralchenko
physics.ins-det hep-ex