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 5 107, 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.
|Titolo:||Procedures and results of the measurements on large area photomultipliers for the NEMO project|
|Data di pubblicazione:||2010|
|Citazione:||Procedures and results of the measurements on large area photomultipliers for the NEMO project / LO PRESTI D. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 614, issue 2, 1 march 2010(2010), pp. 206-212.|
|Appare nelle tipologie:||1.1 Articolo in rivista|