charge transport Detector modelling and simulations II (electric fields electron emission etc Fysik HPDs multiplication and induction Naturvetenskap others Photon detectors for UV pulse formation visible and IR photons (vacuum) (photomultipliers Natural Sciences Physical Sciences
We describe an improved in-situ calibration of the single-photoelectron charge distributions for each of the in-ice Hamamatsu Photonics R7081-02[MOD] photomultiplier tubes in the IceCube Neutrino Observatory. The characterization of the individual PMT charge distributions is important for PMT calibration, data and Monte Carlo simulation agreement, and understanding the effect of hardware differences within the detector. We discuss the single photoelectron identification procedure and how we extract the single-photoelectron charge distribution using a deconvolution of the multiple-photoelectron charge distribution.