We have characterized the intrinsic charge and time resolution of Hamamatsu Photonics multi-pixel photon counters (MPPC) S10362-11-050P and S10362-33-050C, both having a cell size of 50×50 μm2, sensitive area of 1×1 mm2 (400 cells) and 3×3 mm2 (3600 cells), respectively. Measurements have been performed by means of 409 nm light from a pico-laser with σ = 20 ps pulse duration and r.m.s. jitter better than 3 ps. After-pulse effects have been damped out recording the pulse height instead of the charge. Excess noise factors of 1.005 and 1.03 have been measured for the 400 and 3600 cell MCCPs respectively. Results are relevant for the possible use of these photodetectors in ring imaging Cherenkov detectors.
|Titolo:||Charge and Time Characterization of Hamamatsu Multi-Pixel Photon Counters by Means of Fast-Pulsed LASER1|
|Data di pubblicazione:||2014|
|Nome del convegno:||14th International Conference on Advanced Technology and Particle Physics, ICATPP 2013|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1142/9789814603164_0110|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|