Procedures and results of the measurements on large area photomultipliers for the NEMO project

作者：Aiello S; Leonora E^*; Aloisio A; Ameli F; Amore I; Anghinolfi M; Anzalone A; Barbarino G; Barbarito E; Battaglieri M; Bazzotti M; Bellotti R; Bersani A; Beverini N; Biagi S; Bonori M; Bouhdaef B; Cacopardo G; Cali C; Capone A; Caponetto L; Carminati G; Cassano B; Ceres A; Chiarusi T; Circella M; Cocimano R; Coniglione R; Cordelli M; Costa M; D'Amico A; DeBonis G; DeRosa G; DeRuvo G; DeVita R; Distefano C; Flaminio V

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2010, 614(2): 206-212.

DOI：10.1016/j.nima.2009.12.040

• Photomultiplier
• Large area photo-detector
• Neutrino telescope

The selection of the photomultiplier plays a crucial role in the R&D activity related to a large-scale underwater neutrino telescope. This paper illustrates the main procedures and facilities used to characterize the performances of 72 large area photomultipliers, Hamamatsu model R7081 sel. The voltage to achieve a gain of 5 x 107, dark count rate and single photoelectron time and charge properties of the overall response were measured with a properly attenuated 410 nm pulsed laser. A dedicated study of the spurious pulses was also performed. The results prove that the photomultipliers comply with the general requirements imposed by the project.

• 出版日期2010-3-1