Investigation of Hamamatsu H8500 phototubes as single photon detectors
Hoek, M. · Lucherini, V. · Mirazita, M. · Montgomery, R. A. · Orlandi, A. · Pereira, S. Anefalos · Pisano, S. · Rossi, P. · Viticchiè, A. · Witchger, A.
Original · EN
We have investigated the response of a significant sample of Hamamatsu H8500 MultiAnode PhotoMultiplier Tubes (MAPMTs) as single photon detectors, in view of their use in a ring imaging Cherenkov counter for the CLAS12 spectrometer at the Thomas Jefferson National Accelerator Facility. For this, a laser working at 407.2nm wavelength was employed. The sample is divided equally into standard window type, with a spectral response in the visible light region, and UV-enhanced window type MAPMTs. The studies confirm the suitability of these MAPMTs for single photon detection in such a Cherenkov imaging application.
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