Investigation of Hamamatsu H8500 phototubes as single photon detectors
- Montgomery, R.A.
- Hoek, M.
- Lucherini, V.
- Mirazita, M.
- Orlandi, A.
- Anefalos Pereira, S.
- Pisano, S.
- Rossi, P.
- Viticchiè, A.
- Witchger, A.
DOIAbstract
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 407.2 nm 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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