Studien zur Eignung von Silizium Photomultipliern für den Einsatz im erweiterten CMS Detektor am SLHC

Silicon photomultipliers (SiPMs) are modern semiconductor based detectors that have the potential to replace conventional photomultiplier tubes (PMTs) in many fields of application. In the course of research and development for upgrades of the CMS detector their potential for usage in different components is evaluated. The paper at hand deals with the temperature dependency of SiPMs. Their dark current is an important operating parameter. His temperature dependency is investigated using current-voltage characteristics. Furthermore a method for obtaining temperature independent output pulses is presented. To unleash the full potential of the sensors one has to make use of customized electronics for the readout. Therefore a custom printed circuit board developed by the electronics departments of our institute (III. Physikalisches Institut B, RWTH Aachen University) is used in this thesis. Finally the results of measurements on two commercially available MPPC modules from Hamamatsu Photonics K. K. are presented.