Speaker
Rok Pestotnik
(Jozef Stefan Inst. Ljubljana)
Description
A novel photon detector, silicon photomultiplier, whose main advantage over
photomultiplier tubes is the operation in high magnetic field environments,
has been tested in view of measuring Cherenkov photons in a RICH counter.
The results of the measurement of single photo-electron pulse height and
timing distribution, uniformity of the response and photon detector
efficiency will be presented. An array of SiPMs was used as a position
sensitive detector for Cherenkov photons. We will discuss the first results of
the measurements with such an array. To increase the detection efficiency
various light guides were investigated. Finally, we will discuss the design
optimization of a proximity focusing RICH detector with silica aerogel as the
radiator and an array of SiPMs as the photon detector.
Author
Rok Pestotnik
(Jozef Stefan Inst. Ljubljana)
