Results from Silicon Photo-Multiplier neutron irradiation test

Details Results from Silicon Photo-Multiplier neutron irradiation test Results from Silicon Photo-Multiplier neutron irradiation test

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apsp.conf..555f&link_type=abstract

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 11th Conference. Held

Physics

Medical Physics

Silicon Photmultipliers, Neutron Irradiation

Scientific paper

Silicon photo-multipliers, often called "SiPM", are semiconductor photon detectors built from a square matrix of avalanche photo-diodes on common silicon substrate. SiPM have been proposed for several different applications in High Energy Physics, in particular where a large detection granularity and a high photon detection efficiency is needed.
In this paper the results of a radiation hardness test performed at the Frascati Neutron Generator are presented. Several SiPMs of different manufacturers have been irradiated integrating up to 7 × 1010 1-MeV-equivalent neutrons per cm2.
For the first time, their performance have been recorded during the neutron irradiation and a gradual deterioration of their properties was found to happen already after an integrated dose of the order of 108 1-MeV-equivalent neutrons per cm2.

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