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VLVnT13 - Very Large Volume Neutrino Telescope Workshop 2013

5–7 Aug 2013
AlbaNova University Center
Europe/Stockholm timezone

Session

Photodetection and Readout II.

PDR2
6 Aug 2013, 11:00
AlbaNova University Center

AlbaNova University Center

Presentation materials

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  1. 306. Characterization of the 80mm diameter Hamamatsu PMTs for KM3NeT
    Emanuele Leonora (INFN-section of Catania)
    06/08/2013, 11:00
    Photodetection and Readout
    200 PMTs of type R12199-02 have been delivered from Hamamatsu and tested by 3 groups in the frame of the KM3NeT collaboration: Nikhef Amsterdam, INFN Catania and ECAP Erlangen. Tests have been performed to characterize all main PMT parameters to verify whether they comply with the KM3NeT specifications. To this aim, gain, transit time spread (TTS), dark count rate, fraction of delayed...
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  2. 308. Characterization of the KM3NeT photomultipliers in the Hellenic Open University
    Dr George Bourlis (Hellenic Open University)
    06/08/2013, 11:20
    Photodetection and Readout
    The KM3 Neutrino Telescope (KM3NeT) will be a deep-sea multidisciplinary observatory in the Mediterranean Sea. The Physics Laboratory of the Hellenic Open University is involved in the characterization of KM3NeT components. The present work describes measurement techniques for the functional characteristics of the candidate KM3NeT photomultipliers. These characteristics include dark...
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  3. 305. Characterization of the ETEL and HZC 3+ inch PMTs
    Dr Oleg Kalekin (ECAP / University of Erlangen)
    06/08/2013, 11:40
    Photodetection and Readout
    The companies ET Enterprises Ltd (ETEL, UK) and HZC (China) have developed new types of 3+ inch photomultiplier tubes (PMTs), which are considered to be used in multi-PMT optical modules in the KM3NeT neutrino telescope. PMTs of types D783KFLA, D793KFLA, D792KFLA (ETEL) and XP52 (HZC) have been tested by the KM3NeT collaboration. The measurement methods and results are presented.
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  4. 304. Noise and spurious pulses for Cherenkov light detection with 10 inch and 3 inch photomultipliers.
    Dr Valentina Giordano (INFN - Catania)
    06/08/2013, 11:55
    Photodetection and Readout
    A great number of large area photomultipliers are widely used in neutrino and astroparticle detector to measure Cherenkov light in medium like water or ice. The key element of these detectors are the so-called “optical module”, which consist in photodetectors closed in a transparent pressure-resistant glass sphere to protect it and ensure good light transmission. The noise pulses...
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  5. 309. Noise pulses on photomultipliers coupled to glass vessel
    Emanuele Leonora (INFN-section of Catania)
    06/08/2013, 12:10
    Photodetection and Readout
    The detection element of many deep-sea Cherenkov detectors is the so-called "optical module", which consists of a pressure resistant glass sphere with photomultipliers which are optically coupled to the glass with optical gel. Earlier studies indicated that source of noise for the optical module is not only the photomultiplier itself but light could come from the glass of the pressure...
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