Astrophysical Bulletin

, 64:386 | Cite as

High temporal resolution coordinate-sensitive detector with gallium-arsenide photocathode

  • V. G. Debur
  • G. M. Beskin
  • S. V. Karpov
  • V. L. Plokhotnichenko
  • A. S. Terekhov
  • S. S. Kosolobov
  • G. E. Shaibler
Article

Abstract

We present a coordinate-sensitive detector with a gallium-arsenide photocathode—a vacuum photoelectronic device featuring microchannel gain and a multi-element collector—which had several prototypes manufactured. Quantum efficiency of the photocathode amounts to 48% at maximum, its sensitivity range spans from 350 to 900 nm. The microchannel gain unit consists of two plates with an ion barrier film at the entrance. The coordinates of electron avalanches are determined using a 16-element collector. The spatial resolution, diameter of the working field, and temporal resolution of the detector are equal to 25 µm, 18 mm, and about 1 µs, respectively.

Keywords

Astrophysical Bulletin Microchannel Plate Position Sensitive Detector Electron Avalanche Individual Photon 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • V. G. Debur
    • 1
  • G. M. Beskin
    • 1
  • S. V. Karpov
    • 1
  • V. L. Plokhotnichenko
    • 1
  • A. S. Terekhov
    • 2
  • S. S. Kosolobov
    • 2
  • G. E. Shaibler
    • 2
  1. 1.Special Astrophysical ObservatoryRussian Academy of SciencesNizhnij ArkhyzRussia
  2. 2.Institute of Semiconductor Physics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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