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Proceedings Paper

Soft x-ray windows for position-sensitive proportional counters
Author(s): Veli-Pekka Viitanen; Seppo Arvo Anter Nenonen; Heikki Sipila; Risto Mutikainen
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Paper Abstract

Methods have been developed to make ultrathin low-leak x-ray entrance windows which can withstand atmospheric pressures. The first prototypes have been 6 mm or 20 mm diameter windows with film thicknesses 0.5 micrometers - 2.5 micrometers of polyimide and 40 nm - 100 nm of aluminum. Also 0.5 micrometers - 1 micrometers thick beryllium windows with diameter of 6 mm have been fabricated. The goal is to fabricate 140 mm and 70 mm diameter windows for Danish-Finnish position sensitive proportional counters to be flown on the Soviet SPECTRUM-ROENTGEN-GAMMA satellite.

Paper Details

Date Published: 1 October 1991
PDF: 7 pages
Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); doi: 10.1117/12.48324
Show Author Affiliations
Veli-Pekka Viitanen, Outokumpu Electronics Oy (Finland)
Seppo Arvo Anter Nenonen, Outokumpu Electronics Oy (Finland)
Heikki Sipila, Outokumpu Electronics Oy (Finland)
Risto Mutikainen, Technical Research Ctr. of Finland (Finland)

Published in SPIE Proceedings Vol. 1549:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
Oswald H. W. Siegmund; Richard E. Rothschild, Editor(s)

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