10 November 1998 Hard x-ray optics for the HEFT balloon-borne payload: prototype design and status
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Abstract
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William W. Craig, Finn Erland Christensen, Todd R. Decker, Charles J. Hailey, Fiona A. Harrison, Randal M. Hill, Mario A. Jimenez-Garate, Peter H. Mao, Steven M. Schindler, "Hard x-ray optics for the HEFT balloon-borne payload: prototype design and status", Proc. SPIE 3445, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IX, (10 November 1998); doi: 10.1117/12.330269; https://doi.org/10.1117/12.330269
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