Author/Authors :
Lehmann، نويسنده , , A. and Britting، نويسنده , , A. and Cowie، نويسنده , , E. and Dodokhof، نويسنده , , V.Kh. and Düren، نويسنده , , M. and Dutta، نويسنده , , D. and Eyrich، نويسنده , , W. and Fِhl، نويسنده , , Joel K. and Glazier، نويسنده , , D.I. and Hayrapetyan، نويسنده , , A. and Hoek، نويسنده , , M. and Hohler، نويسنده , , R. and Kaiser، نويسنده , , R. and Keri، نويسنده , , Annemarie T. and Koch، نويسنده , , P. and Krِck، نويسنده , , B. and Lehmann Miotto، نويسنده , , D.، نويسنده ,
Abstract :
DIRC Cherenkov detectors will be the main devices for π / K separation at the PANDA experiment at FAIR. Due to their advantageous properties in terms of time resolution and especially inside magnetic fields micro-channel plate photo multipliers (MCP-PMTs) are very attractive sensor candidates. In this paper we present the investigation of several types of multi-anode MCP-PMTs. The darkcount rate, the behavior inside a magnetic field of up to 2 T, the time resolution, the gain homogeneity and crosstalk of multi-pixel MCP-PMTs were found to be well suitable for the PANDA requirements. Even the rate capability of the latest models from Burle-Photonis and Hamamatsu is satisfactory. Although a big step forward was accomplished with these recently available MCP-PMTs, the lifetime is still not sufficient for the photon densities expected for the PANDA DIRCs.
Keywords :
MCP-PMT , Magnetic field , gain , Single photon , Time resolution , crosstalk , Lifetime , Photo detectors , PANDA experiment
