8 October 1992 X-ray windows for spaceborne detectors
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Abstract
Several types of ultrathin entrance windows have been developed for applications in spaceborne X-ray instruments. Active area diameters up to 140 mm have been achieved. The latest windows developed have a transmission of > 20% at B K(alpha) and > 40% at N K(alpha) . A new gas block layer type utilizing aluminum nitride has been developed, as well as semitransparent support structures for the membranes. The effects of pressure-induced strain, radiation and atomic oxygen corrosion on the gas leak properties of the windows has been studied.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Veli-Pekka Viitanen, Veli-Pekka Viitanen, Seppo Arvo Anter Nenonen, Seppo Arvo Anter Nenonen, Panu Partanen, Panu Partanen, Heikki Sipila, Heikki Sipila, Risto Mutikainen, Risto Mutikainen, } "X-ray windows for spaceborne detectors", Proc. SPIE 1743, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III, (8 October 1992); doi: 10.1117/12.130686; https://doi.org/10.1117/12.130686
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