Developments In Microchannel Plate Detectors For Imaging X-Ray Astronomy

G. W. Fraser; M. J. Whiteley; J. F. Pearson

doi:10.1117/12.966600

14 July 1986 Developments In Microchannel Plate Detectors For Imaging X-Ray Astronomy

G. W. Fraser, M. J. Whiteley, J. F. Pearson

Proceedings Volume 0597, X-Ray Instrumentation in Astronomy; (1986) https://doi.org/10.1117/12.966600
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

We present new results in four areas of microchannel plate (MCP) X-ray detector operation. The performance in pulse counting mode of MCPs with 8 micron channel diameters is reported. The effects on MCP quantum detection efficiency and energy discrimination of multiple CsI coatings are described. A new mode of operation of two-stage multipliers is evaluated. Replacing the conventional electron-accelerating inter-plate potential difference by a retarding field is shown to result in definite advantages with regard to X-ray energy discrimination and detector lifetime. The source of the MCP internal background is discussed.

Citation Download Citation

G. W. Fraser, M. J. Whiteley, and J. F. Pearson "Developments In Microchannel Plate Detectors For Imaging X-Ray Astronomy", Proc. SPIE 0597, X-Ray Instrumentation in Astronomy, (14 July 1986); https://doi.org/10.1117/12.966600

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