\begin{thebibliography}{10} \bibitem{Lubsandorzhiev2006} B.K. Lubsandorzhiev. \newblock On the history of photomultiplier tube invention. \newblock {\em Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}, 567(1):236 -- 238, 2006. \newblock Proceedings of the 4th International Conference on New Developments in Photodetection. \bibitem{hamamatsu2006} KK~Hamamatsu Photonics. \newblock Photomultiplier tube handbook. \newblock {\em Electron Tube Division,}, 2006. \bibitem{Aiello2018} S.~Aiello, S.E. Akrame, F.~Ameli, et~al. \newblock Characterisation of the hamamatsu photomultipliers for the {KM}3net neutrino telescope. \newblock {\em Journal of Instrumentation}, 13(05):P05035--P05035, may 2018. \bibitem{Wright2017} AG~Wright. \newblock {\em The photomultiplier handbook}. \newblock Oxford University Press, 2017. \bibitem{Shockley1938} W.~{Shockley} and J.~R. {Pierce}. \newblock A theory of noise for electron multipliers. \newblock {\em Proceedings of the Institute of Radio Engineers}, 26(3):321--332, March 1938. \bibitem{Knoll1979} Glenn~F Knoll. \newblock Radiation detection and measurement(book). \newblock {\em New York, John Wiley and Sons, Inc., 1979. 831 p}, 1979. \bibitem{photonics1994} Philips Photonics. \newblock Photomultiplier tubes, principles and applications. \newblock {\em Philips Export BV}, 1994. \bibitem{Eeden2019} Thijs~Juan van Eeden. \newblock {Measuring the Angular Acceptance of the KM3NeT Digital Optical Module}. \newblock Master's thesis, Technische Universiteit Delft, the Netherlands, 2019. \bibitem{Baudis2015} L~Baudis, S~D'Amato, G~Kessler, A~Kish, and J~Wulf. \newblock Measurements of the position-dependent photo-detection sensitivity of the hamamatsu r11410 and r8520 photomultiplier tubes. \newblock {\em arXiv preprint arXiv:1509.04055}, 2015. \bibitem{Jung2020} Bouke Jung. \newblock KM3NeT Computing and Software ELOG, message ID 444. \bibitem{Reubelt2018} Jonas Reubelt. \newblock Hardware studies, in-situ prototype calibration and data analysis of the novel multi-pmt digital optical module for the km3net neutrino telescope. \newblock 2018. \bibitem{Bellamy1994} E.H. Bellamy, G.~Bellettini, J.~Budagov, et~al. \newblock Absolute calibration and monitoring of a spectrometric channel using a photomultiplier. \newblock {\em Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}, 339(3):468 -- 476, 1994. \bibitem{Kissick2010} David~J. Kissick, Ryan~D. Muir, and Garth~J. Simpson. \newblock Statistical treatment of photon/electron counting: Extending the linear dynamic range from the dark count rate to saturation. \newblock {\em Analytical Chemistry}, 82(24):10129--10134, 2010. \newblock PMID: 21114249. \bibitem{Prescott1966} J.R. Prescott. \newblock A statistical model for photomultiplier single-electron statistics. \newblock {\em Nuclear Instruments and Methods}, 39(1):173 -- 179, 1966. \bibitem{Degtiarenko2017} Pavel Degtiarenko. \newblock Precision analysis of the photomultiplier response to ultra low signals. \newblock {\em Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}, 872:1–15, Nov 2017. \bibitem{Bromiley2003} Paul Bromiley. \newblock Products and convolutions of gaussian probability density functions. \newblock {\em Tina-Vision Memo}, 3(4):1, 2003. \bibitem{Hofestaedt2017} Jannik Hofestaedt. \newblock KM3NeT Analysis ELOG, message ID 220. \bibitem{Deepak2020} Deepak Gajanana. \newblock private communication. \bibitem{Hoermann1990} W~Hoermann and G~Derflinger. \newblock The acr method for generating normal random variables. \newblock {\em Operations-Research-Spektrum}, 12(3):181--185, 1990. \end{thebibliography}