Large area photomultipliers are widely used in neutrino and astro-particle detectors to measure Cherenkov light in media like water or ice. The key element of these detectors are the so-called "optical module", which consists of a photodetector enclosed in a transparent pressure-resistant container to protect it and ensure good light transmission. Noise pulses at the anode of each photomultiplier strongly affect the performance of the detector. A large study was conducted on noise pulses of large area photomultipliers, considering time and charge distributions of dark pulses, pre-pulses, delayed pulses, and after pulses. The contribution to noise pulses due to the presence of the external glass vessels was also studied, even comparing two vessels of different brands.
|Titolo:||Noise Pulses in Large Area Optical Modules|
|Data di pubblicazione:||2014|
|Citazione:||Noise Pulses in Large Area Optical Modules / Leonora E.; Aiello S.; Giordano V.; Randazzo N.; Longhitano F.; LO PRESTI D; Pugliatti C.; Sipala V.. - In: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - ISSN 0018-9499. - 61:4(2014), pp. 2097-2104.|
|Appare nelle tipologie:||1.1 Articolo in rivista|