Prospect of space-based interferometry at EUV and soft x-ray wavelengths

Barry Y. Welsh; Supriya Chakrabarti

doi:10.1117/12.51227

1 January 1992 Prospect of space-based interferometry at EUV and soft x-ray wavelengths

Barry Y. Welsh, Supriya Chakrabarti

Proceedings Volume 1546, Multilayer and Grazing Incidence X-Ray/EUV Optics; (1992) https://doi.org/10.1117/12.51227
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

We review the current capabilities of high-resolution, spectroscopic, space-borne instrumentation available for both solar and stellar observations in the EUV and soft X-ray wavelength regimes, and describe the basic design of a compact, all-reflection interferometer based on the spatial heterodyne technique; this is capable of producing a resolving power (lambda/Delta-lambda) of about 20,000 in the 100-200 A region using presently available multilayer optical components. Such an instrument can be readily constructed with existing technology. Due to its small size and lack of moving parts, it is ideally suited to spaceborne applications. Based on best estimates of the efficiency of this instrument at soft X-ray wavelengths, we review the possible use of this high-resolution interferometer in obtaining high-resolution full-disk spectroscopy of the sun. We also discuss its possible use for observations of diffuse sources such as the EUV interstellar background radiation.

Citation Download Citation

Barry Y. Welsh and Supriya Chakrabarti "Prospect of space-based interferometry at EUV and soft x-ray wavelengths", Proc. SPIE 1546, Multilayer and Grazing Incidence X-Ray/EUV Optics, (1 January 1992); https://doi.org/10.1117/12.51227

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