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PMm2: R&D on triggerless acquisition for next generation neutrino experiments

Abstract : The next generation of proton decay and neutrino experiments, the post-SuperKamiokande detectors, such as those that will take place in megaton size water tanks, will require very large surfaces of photo-detection and will produce a large volume of data. Even with large hemispherical photomultiplier tubes (PMTs), the expected number of channels should reach hundreds of thousands. An ANR funded R&D program to implement a solution is presented here. The very large surface of photo-detection is segmented in macro pixels consisting of an array (2 × 2 m2) of 16 hemispherical 12-inch PMTs connected to autonomous underwater front-end electronics working in a triggerless data acquisition mode. The array is powered by a common high voltage and only one data cable allows the connection by network to the surface controller. This architecture allows a considerable reduction of the cost and facilitates the industrialization. This paper presents the complete architecture of the prototype system and tests results with 16 8-inch PMTs, validating the whole electronics, the built-in gain adjustment and the calibration principle.
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Submitted on : Wednesday, February 2, 2011 - 5:24:11 PM
Last modification on : Thursday, September 30, 2021 - 3:35:16 AM

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Jean-Eric Campagne, S. Conforti Di Lorenzo, S. Drouet, D. Duchesneau, F. Dulucq, et al.. PMm2: R&D on triggerless acquisition for next generation neutrino experiments. Topical Workshop on Electronics for Particle Physics 2010, TWEPP 2010, Sep 2010, Aachen, Germany. pp.C01081, ⟨10.1088/1748-0221/6/01/C01081⟩. ⟨in2p3-00562098⟩



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