The multi-PMT optical module for KM3NeT

Löhner, H.
Dorosti-Hasankiadeh, Q.
Heine, E.
Gajanana, D.
Kavatsyuk, O.
Kooijman, P.
Kopper, C.
Peek, H.
Steijger, J.
Timmer, P.
de Wolf, E.

Publication date

August 2013

DOI

10.1016/j.nima.2012.11.049

Abstract

In the future neutrino telescope KM3NeT a novel type of optical module (OM) will be employed to optimize the sensitivity to Cherenkov photons and maximize the environmental background suppression. The multiPMT OM, a pressure-resistant glass sphere containing 31 photomultiplier tubes (PMTs) of 3-in. diameter, has been developed and prototyped including electronics for high-voltage generation, signal digitization and optical signal transmission. Monte-Carlo simulations show that a multi-PMT OM configuration requires three times less OMs to achieve the same performance as conventional OMs hosting 10-in. PMTs. (C) 2012 Elsevier B.V. All rights reserved