Silicon Photo-Multiplier radiation hardness tests with a beam controlled neutron source

Details Silicon Photo-Multiplier radiation hardness tests with a beam controlled neutron source Silicon Photo-Multiplier radiation hardness tests with a beam controlled neutron source

2010-02-18

arxiv.org/abs/1002.3480v2

Physics

Instrumentation and Detectors

7 pages, 6 figures, Submitted to Nucl. Inst. Meth. A

Scientific paper

10.1016/j.nima.2010.07.057

We report radiation hardness tests performed at the Frascati Neutron Generator on silicon Photo-Multipliers, semiconductor photon detectors built from a square matrix of avalanche photo-diodes on a silicon substrate. Several samples from different manufacturers have been irradiated integrating up to 7x10^10 1-MeV-equivalent neutrons per cm^2. Detector performances have been recorded during the neutron irradiation and a gradual deterioration of their properties was found to happen already after an integrated fluence of the order of 10^8 1-MeV-equivalent neutrons per cm^2.

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