Author/Authors :
Sلnchez Majos، نويسنده , , S. and Achenbach، نويسنده , , P. and Ayerbe Gayoso، نويسنده , , C. and Bernauer، نويسنده , , J.C. and Bِhm، نويسنده , , R. and Distler، نويسنده , , M.O. and Gَmez Rodrيguez de la Paz، نويسنده , , M. and Merkel، نويسنده , , H. and Müller، نويسنده , , U. and Nungesser، نويسنده , , L. and Pochodzalla، نويسنده , , J. and Schlimme، نويسنده , , B.S. and Walcher، نويسنده , , Th. and Weinr، نويسنده ,
Abstract :
For the electron arm tracking system in the KAOS spectrometer at the Mainz Microtron MAMI a detector based on 2 m long scintillating fibres read out by silicon photomultipliers (SiPM) is planned. Because of the detectorʹs close proximity to the intense electron beam a study of noise and radiation damage in SiPM has been performed. A sample of devices was exposed directly to a 14 MeV electron beam and to a mixed radiation field in the experimental area. First noticeable effects are a large increase in the dark count rate and a severe loss of the gain uniformity.
Keywords :
Tracking and position-sensitive detectors , Particle detector design , Radiation damage , Silicon PhotoMultiplier
