Title of article
Avalanche photodiodes for electromagnetic calorimeters
Author/Authors
Pilicer، نويسنده , , Ercan and Kocak، نويسنده , , Fatma and Tapan، نويسنده , , Ilhan and Ahmetoglu (Afrailov)، نويسنده , , Muhitdin Eski، نويسنده ,
Pages
2
From page
120
To page
121
Abstract
Hamamatsu S8148 silicon avalanche photodiode (APD) working in proportional mode has been chosen as readout device for the PbWO4 crystals in the barrel of the CMS electromagnetic calorimeter (ECAL). High hadron fluences strongly affect the main parameters of both the scintillation crystals and the silicon detectors. In this work, we offer a new zinc sulfide–silicon (ZnS–Si) isotype heterojunction APD structure that is able to operate in high-radiation levels. A Monte Carlo simulation code has been performed in order to compare the Hamamatsu S8148 and the ZnS–Si APD structures for the photons emitting from PbWO4 crystal during 10 years of CMS operation. Based on this work, the performance of these two APD structures has been investigated.
Keywords
Avalanche photodiodes , Monte Carlo simulation , Radiation damage
Journal title
Astroparticle Physics
Record number
2027563
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