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Proceedings Paper

Soft x-ray windows for position-sensitive proportional counters
Author(s): Seppo Arvo Anter Nenonen; Heikki Sipila; P. Jalas; Risto Mutikainen
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Paper 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.

Paper Details

Date Published: 1 November 1990
PDF: 6 pages
Proc. SPIE 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy, (1 November 1990); doi: 10.1117/12.23280
Show Author Affiliations
Seppo Arvo Anter Nenonen, Outokumpu Electronics Oy (Finland)
Heikki Sipila, Outokumpu Electronics Oy (Finland)
P. Jalas, Outokumpu Electronics Oy (Finland)
Risto Mutikainen, Technical Research Ctr. of Finland (Finland)


Published in SPIE Proceedings Vol. 1344:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy
Oswald H. W. Siegmund; Hugh S. Hudson, Editor(s)

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