Hard x-ray optics for the HEFT balloon-borne payload: prototype design and status

Details Hard x-ray optics for the HEFT balloon-borne payload: prototype design and status Hard x-ray optics for the HEFT balloon-borne payload: prototype design and status

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3445..112c&link_type=abstract

Proc. SPIE Vol. 3445, p. 112-120, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX, Oswald H. Siegmund; Mark A. Gummin

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We report on the current status and performance of prototype hard x-ray optics we are producing for use on the high energy focusing telescope (HEFT) experiment. The baseline substrates are thermally formed glass mirrors that are overcoated with multilayers to provide good performance throughout the 20-80 keV bandpass. Progress made in the thermal forming process as well as in the multilayer performance has allowed production of optics that meet or exceed all HEFT requirements. We present metrology on the substrates and result from x-ray characterization. A novel mounting scheme for the individual telescope shells is currently being tested. If successful the mounting technique will produce a monolithic, extremely stiff and robust optic.

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