New and Enhanced Photosensor Technologies for Underground/underwater Neutrino Experiments (NEPTUNE 2020)

Gianfranca De Rosa (NA), Pasquale Migliozzi (NA)
Due to Covid-19 pandemic and the subsequent decision of the Italian Government, we are forced to cancel the workshop that was already postponed from March to November.
Over the last years some of the most important discoveries in particle (discovery of neutrino oscillations) and astro-particle physics (discovery of extra-galactic high-energy neutrinos) have been achieved by experiments detecting scintillation or Cherenkov light, produced by the charged particles produced in the neutrino interactions, by means of photosensors. Currently, several programs are ongoing for the upgrade of the existing facilities or the development of next generation ones. Also in this case the detection principle exploits the scintillation or Cherenkov light produced by charged-particles. Therefore, the development of new and enhanced photosensors is a key step towards the construction of new and more sensitive experiments both in particle and astro-particle physics.
The goal of this workshop is to review the state of the art and future developments in the field of photosensors, with particular attention to the high pixelation photosensor approach using small PMTsand their applications. The properties of materials used to build instrumentation based on photosensors and the electronics will be some of the topics of the workshop. The calibration of the devices as well as the event reconstruction and Monte Carlo technique will be also addressed.



  • Alan Cosimo Ruggeri
  • Alexander Kappes
  • Anatael CABRERA
  • Armand Hattat
  • Ciro Riccio
  • Claudio Kopper
  • Daniele Vivolo
  • Deepak Gajanana
  • fabio marzaioli
  • Gianfranca De Rosa
  • John Kelley
  • Jonas Reubelt
  • Judith Schneider
  • Karl-Heinz Sulanke
  • Lew Classen
  • Marcin Ziembicki
  • Mathieu Guigue
  • Matthew Malek
  • Oleg Kalekin
  • Paolo Fermani
  • Pasquale Migliozzi
  • Raffaele Buompane
  • Semyon Khokhlov
  • Shunichi Mine
  • Stefano Germani
  • stefano russo
  • Thijs van Eeden
  • Thomas Lindner
  • Uli Katz
  • Vincenzo Berardi
  • Vitaly Shutov
  • Vladimir Kulikovskiy
  • Yasuhiro Nishimura
    • 1
    • Recent progress in photosensor developments
      • 2
        The CHIPS PMT system
        Speaker: Stefano Germani
      • 3
        40K calibration of the DOMs in the sea
        Speaker: Paolo Fermani
      • 4
        Study of the R14374 Hamamatsu PMTs performance
        Speaker: Oleg Kalekin
      • 5
        PMT development and characterization for mDOM
        Speaker: Jonas Reubelt
    • 10:20 AM
      Coffee break
    • Recent progress in photosensor developments
      • 6
        JUNO PMT system
        Speaker: TBD TBD
      • 7
        Development and measurement of new large-aperture photodetectors
        Speaker: Yasuhiro Nishimura
      • 8
        3-inch PMT characterization
        Speaker: TBD TBD
      • 9
        The Accelerator Neutrino-Nucleus Interaction Experiment (ANNIE) and First Use of Large-Area Picosecond Photo-Detectors (LAPPDs) in a Neutrino Detector
        Speaker: Matthew Malek
    • High-voltage generation, electronic read-out and signal processing
      • 10
        KM3NeT PMT base developments
        Speaker: Deepak Gajanana
      • 11
        Communication between in-ice modules and surface in IceCube Upgrade
        Speaker: John Kelley
    • 1:00 PM
    • High-voltage generation, electronic read-out and signal processing
      • 12
        Readout electronics/mainboard for mDOM
        Speaker: Karl-Heinz Sulanke
      • 13
        JUNO HV generation system
        Speaker: TBD TBD
      • 14
        JUNO Readout system
        Speaker: TBD TBD
      • 15
        mPMT electronics for mPMT in Hyper-Kamiokande
        Speaker: Marcin Ziembicki
      • 16
        CHIPS and ICECube HV and readout systems
        Speaker: John Kelley
    • 3:40 PM
      Coffee break
    • High-voltage generation, electronic read-out and signal processing
      • 17
        Design verification tests of the PMT-HV-Base for the IceCube mDOM
        Speaker: Judith Schneider
      • 18
        Electronics for Large Arrays of Photodetectors
        Speaker: Nicola Paoli
    • Calibration systems
      • 19
        Time-over-threshold PMT calibration in the KM3NeT project
        Speaker: Oleg Kalekin
      • 20
        PMT and DOM simulation in KM3NeT
        Speaker: Vladimir Kulikovskiy
      • 21
        IWCD mPMT calibration
        Speaker: Thomas Lindner (TRIUMF)
    • multi-PMT systems for photodetection
      • 22
        KM3NeT DOM and future developments
        Speaker: Daniele Vivolo
      • 23
        IceCube Upgrade and IceCube-Gen2 overview
        Speaker: Claudio Kopper
      • 24
        Module design concepts for IceCube-Gen2
        Speaker: Markus Ackermann
      • 25
        DOM behavior as a function of the temperature and humidity
        Speaker: Carlos Maximiliano Mollo (
    • 10:20 AM
      Coffee break
    • multi-PMT systems for photodetection
      • 26
        JUNO Dual Calorimetry system description
        Speaker: TBD TBD
      • 27
        mPMT prototype test in MEMPHINO
        Speaker: Mathieu Guigue
      • 28
        mPMT for Hyper-Kamiokande
        Speaker: Vincenzo Berardi
      • 29
        mPMT prototype for IWCD
        Speaker: Lindner Thomas
    • Opening of the KM3Net integration point
    • Simulation and Results from experiments taking data
      • 30
        JUNO Data & Simulation
        Speaker: TBD TBD
      • 31
        Optical TPC analysis for IWCD
        Speaker: Akira Konaka (TRIUMF)
      • 32
        Impact of mPMT to HyperK
        Speaker: Benjamin Quilan
      • 33
        Angle and position dependent response of PMTs in a KM3NeT DOM
        Speaker: Thijs Juan van Eeden
    • 3:50 PM
      Coffee break
    • Calibration systems
      • 34
        Calibration system in Super-Kamiokande and plans for Hyper-Kamiokande
        Speaker: Shunichi Mine
      • 35
        CERN water Cherenkov beam test
        Speaker: Akira Konaka
      • 36
        22. Time Synchronization Schemes for the Future Hyper-Kamiokande Experiment
        Speaker: Stefano Russo
    • Mechanics of underground/underwater multi-PMT devices
      • 37
        Mechanical design of the mDOM for IceCube Upgrade
        Speaker: Lew Classen
      • 38
        Vessel materials for mPMT in Hyper-Kamiokande
        Speaker: Roberto Spina ( )
      • 39
        Acrylic cover in Hyper-Kamiokande
        Speaker: Alan Cosimo Ruggeri
      • 40
        Mass spectrometry and NRA for the KM3NeT materials
        Speaker: Fabio Marzaioli
      • 41
        Underwater cabling and interconnect solutions for JUNO
        Speaker: Armand Hattat
      • 42
        Chips detector planes
        Speaker: Jennifer Thomas
    • 11:00 AM
      Coffee break
    • Available facilities for tests
    • Summary talk