Speaker
Rok Pestotnik
(Jozef Stefan Institute (SI))
Description
An array of $8 \times 8$ silicon photomultipliers (SiPMs) was characterised as a position sensitive single photon sensor for Ring Imaging Cherenkov (RICH) counter. To improve the geometric efficiency of the array, light concentrators were designed in a form of truncated pyramids and machined from borosilicate glass. A very high number of photons per Cherenkov ring, approximately 35, was detected with a prototype module in an electron beam at DESY. In this contribution, the losses introduced by the binary operation mode are estimated. The possibility of reducing optical cross-talk in the light concentrators array by employing the Teflon filler is considered and results of optical bench tests and ray tracing simulations are presented.
| Registered | Yes |
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Primary author
Elvedin Tahirovic
(University of London (GB))
Co-authors
External references
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