Soft x-ray windows for position-sensitive proportional counters

Veli-Pekka Viitanen; Seppo Arvo Anter Nenonen; Heikki Sipila; Risto Mutikainen

doi:10.1117/12.48324

1 October 1991 Soft x-ray windows for position-sensitive proportional counters

Veli-Pekka Viitanen, Seppo Arvo Anter Nenonen, Heikki Sipila, Risto Mutikainen

Proceedings Volume 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II; (1991) https://doi.org/10.1117/12.48324
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Veli-Pekka Viitanen, Seppo Arvo Anter Nenonen, Heikki Sipila, and Risto Mutikainen "Soft x-ray windows for position-sensitive proportional counters", Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); https://doi.org/10.1117/12.48324

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