Author/Authors :
J and Gernhنuser، نويسنده , , R. and Bauer، نويسنده , , B. and Friese، نويسنده , , J. and Homolka، نويسنده , , J. and Kastenmüller، نويسنده , , A. and Kienle، نويسنده , , P. and Kِrner، نويسنده , , H.-J. and Maier-Komor، نويسنده , , P. and Münch، نويسنده , , M. and Schneider، نويسنده , , R. and Zeitelhack، نويسنده , , K.، نويسنده ,
Abstract :
We report the performance of a VUV-sensitive MWPC with a pad cathode covered by a solid CsI photon converter. Cherenkov photons produced by relativistic 12C ions in a MgF2 radiator have been detected with 95% single photo electron efficiency. In the HADES design a resulting figure of merit N0 > 66 promises proper operation of the RICH as a fast hadron blind trigger device. In addition, we have investigated the scintillation properties of several fluoro-carbon radiator gases in the VUV wavelength region. A significant emission around λ ∼ 170 nm is found for CF4.
