Soft X-ray windows for position sensitive proportional counters

Details Soft X-ray windows for position sensitive proportional counters Soft X-ray windows for position sensitive proportional counters

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1344..100n&link_type=abstract

IN: EUV, X-ray, and Gamma-ray instrumentation for astronomy; Proceedings of the Meeting, San Diego, CA, July 11-13, 1990 (A92-20

Astronomy and Astrophysics

Astronomy

1

Proportional Counters, Windows (Apertures), X Ray Spectra, X Rays, Microstrip Devices, Soviet Satellites, Tungsten, Waveguide Windows, X Ray Astronomy

Scientific paper

Methods to make ultrathin low-leak X-ray entrance windows, which can withstand atmospheric pressures, have been developed. The first prototype windows have been 6 mm or 20 mm diameter windows with film thicknesses 0.5 micron - 2.5 micron of polyimide and 40 nm-100 nm of aluminum. Also, 1 micron thick beryllium windows with diameter 6 mm have been made. The goal is to fabricate 140 mm diameter windows for Danish-Finnish position sensitive proportional counters to be flown on the Soviet Spectrum-X-Gamma satellite.

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