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A study of a short-term instability and aging of ΦЭУ-115M photomultiplier tubes

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Abstract

Results of studying the instability of the gain of ΦЭУ-115M photomultiplier tubes (PMTs) at a varying count rate corresponding to the range of the anode current of 0.02–120 μA are presented. It is shown that the behavior and value of the gain instability for different specimens of this PMT type substantially differs when the count rate changes. The relative change in the gain of some PMTs reaches 23%. Results of the study of the long-term behavior of the PMT gain in high-rate conditions (PMT aging study) are given. The relative gain drop is 30% after an anode charge of ∼600 C is accumulated.

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Authors and Affiliations

  1. Institute for High-Energy Physics, ul. Pobedy 1, Protvino, Moscow oblast, 142281, Russia

    V. N. Evdokimov

  2. Fermi National Accelerator Laboratory, Batavia, IL, 60510, UK

    D. S. Denisov

Authors
  1. V. N. Evdokimov
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  2. D. S. Denisov
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Original Russian Text © V.N. Evdokimov, D.S. Denisov, 2008, published in Pribory i Tekhnika Eksperimenta, 2008, No. 1, pp. 99–105.

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Evdokimov, V.N., Denisov, D.S. A study of a short-term instability and aging of ΦЭУ-115M photomultiplier tubes. Instrum Exp Tech 51, 89–95 (2008). https://doi.org/10.1134/S0020441208010090

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  • DOI: https://doi.org/10.1134/S0020441208010090

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