Owing to its depth underground, SNOLAB is an excellent site for hosting rare event searches such as searches for WIMP-like dark matter or neutrinoless double beta decay. The overburden of rock at SNOLAB provides a reduction in the cosmic muon flux of over 7 orders of magnitude as compared to the flux at sea level. Still, even the residual fluxes of cosmic muons can contribute to backgrounds;...
Single photon detectors are used in a wide range of experiments at SNOLAB, from SNO, to DEAP-3600, and experiments on the horizon, nEXO and ARGO. The technology continues to evolve from vacuum Photo-multiplier tube to Silicon photo-multiplers, to the future "photon to bit" converter. I will review the evolution of the technology and highlights its relevance to ongoing and future experiments at...