  Next generation multi-ton scale noble liquid experiments have the unique
opportunity to discover dark matter particles at the TeV scale, reaching the
sensitivity of 10^-48 cm2 in the WIMP nucleon scattering cross-section. A
prerequisite will be the reduction of radiogenic background sources to
negligible levels. This is only possible if ultra pure high efficiency
photosensors are available for the scintillation light readout. Current
experiments (e.g. Xenon, LUX, Darkside, ArDM) use cryogenic PMTs as
photosensors. An attractive alternative is represented by silicon
photomultiplier arrays (SiPM arrays), which show unrivalled performances in
single photon detection. This paper reports on the performance of the
SensL-30035-16P SiPM array and a custom made cryogenic front-end board at the
liquid argon temperature.
