Title of article
Scintillator counters with multi-pixel avalanche photodiode readout for the ND280 detector of the T2K experiment
Author/Authors
Mineev، نويسنده , , O. and Afanasjev، نويسنده , , Genady A. and Bondarenko، نويسنده , , G. and Golovin، نويسنده , , V. and Gushchin، نويسنده , , E. and Izmailov، نويسنده , , A. and Khabibullin، نويسنده , , M. and Khotjantsev، نويسنده , , A. and Kudenko، نويسنده , , Yu. and Kurimoto، نويسنده , , Y. and Kutter، نويسنده , , T. and Lubsandorzhiev، نويسنده , , B. and Mayatski، نويسنده , , V. and Musienko، نويسنده , , Yu. and Nakaya، نويسنده ,
Pages
12
From page
540
To page
551
Abstract
The Tokai-to-Kamioka (T2K) experiment is a second generation long baseline neutrino oscillation experiment which aims at a sensitive search for ν e appearance. The main design features of the T2K near neutrino detectors located at 280 m from the target are presented, and the scintillator counters are described. The counters are readout via WLS fibers embedded into S-shaped grooves in the scintillator from both ends by multi-pixel avalanche photodiodes operating in a limited Geiger mode. Operating principles and results of tests of photosensors with a sensitive area of 1 mm 2 are presented. A time resolution of 1.75 ns, a spatial resolution of 9.9 – 12.4 cm , and a detection efficiency for minimum ionizing particles of more than 99% were obtained for scintillator detectors in a beam test.
Keywords
Multi-pixel APD , Photosensors , Neutrino detectors , WLS readout
Journal title
Astroparticle Physics
Record number
2029021
Link To Document