Soft x-ray windows for position-sensitive proportional counters

Seppo Arvo Anter Nenonen; Heikki Sipila; P. Jalas; Risto Mutikainen

doi:10.1117/12.23280

1 November 1990 Soft x-ray windows for position-sensitive proportional counters

Seppo Arvo Anter Nenonen, Heikki Sipila, P. Jalas, Risto Mutikainen

Proceedings Volume 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy; (1990) https://doi.org/10.1117/12.23280
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

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.

Citation Download Citation

Seppo Arvo Anter Nenonen, Heikki Sipila, P. Jalas, and Risto Mutikainen "Soft x-ray windows for position-sensitive proportional counters", Proc. SPIE 1344, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy, (1 November 1990); https://doi.org/10.1117/12.23280

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