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Proceedings Paper

Characteristics of Photonis 6-um pore microchannel plates
Author(s): James F. Pearson; Adam N. Brunton; Adrian P. Martin; George W. Fraser; John Ernest Lees; J.-P. Boutot; R. Fairbend; Sven Olof Flyckt
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Paper Abstract

We report on the performance of 6 micrometer pore diameter Microchannel Plates (MCPs) fabricated in 50 X 50 mm2 format, from both standard and radio-isotope free low noise glass, by Photonis SAS for a European Space Agency Technology Research Program. We compare them to MCPs manufactured by Photonis (the former Philips Photonics) for the High Resolution Camera (HRC) on NASA's Chandra X-ray observatory. The new MCPs represent a significant advance in MCP technology, having a much larger area than previously reported 6 micrometer plates, and demonstrating low noise 6 micrometer technology for the first time. The 6 micrometer plates are shown to be, mechanically, exceptionally well made with a defect density reduced by a factor of 2 - 5 compared to samples from the HRC flight blocks. They exhibit excellent gain and the expected 0.28 keV (Carbon K) X-ray quantum efficiency. The low noise plates have a very uniform response to X-rays but the standard glass MCPs do show inhomogeneity on both the global and multifiber scales.

Paper Details

Date Published: 13 December 2000
PDF: 12 pages
Proc. SPIE 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, (13 December 2000); doi: 10.1117/12.409114
Show Author Affiliations
James F. Pearson, Univ. of Leicester (United Kingdom)
Adam N. Brunton, Univ. of Leicester (United Kingdom)
Adrian P. Martin, Univ. of Leicester (United States)
George W. Fraser, Univ. of Leicester (United Kingdom)
John Ernest Lees, Univ. of Leicester (United Kingdom)
J.-P. Boutot, Photonis S.A.S. (France)
R. Fairbend, Photonis S.A.S. (France)
Sven Olof Flyckt, Photonis S.A.S. (France)

Published in SPIE Proceedings Vol. 4140:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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