Soft x-ray windows for position-sensitive proportional counters
- 1 November 1990
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 1344, 100-106
- https://doi.org/10.1117/12.23280
Abstract
Methods to make ultrathin low-leak X-ray entrance windows, which can withstand atniospheric pressures, have been developed. The first prototype windows have been 6 mm or 20 mm diameter windows with film thicknesses 0.5 m - 2.5 jm of polyimide and 40 ma - 100 nm of aluminium. Also 1 m thick beryllium windows with diameter 6 mm have been made. Our goal is to fabricate 140 mm diameter windows for Danish-Finnish position sensitive proportional counters to be flown on the Spviet SPECTRUM-X-GAMMA satellite.Keywords
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