Ultrahigh-resolution XUV spectroheliograph III: a modified configuration for a free-flying platform

摘要

Abstract: The ultra-high resolution XUV spectroheliograph (UHRXS) is a comprehensive solar observatory capable of studying solar phenomena at soft x ray, XUV, EUV, and VUV wavelengths with normal incidence imaging multilayer telescopes capable of very high angular resolution (approximately 0.1 in.) and spectrographs able to achieve high spectral resolution ($lambda@/$Delta$lambda $GREQ 10,000 at most wavelengths). This instrument has been selected by NASA for flight as an attached payload on the Space Station Freedom. Recent developments have made it clear that accommodations for attached payloads on Freedom will not become available during the initial operations of Freedom and may never be available. We have studied the changes that must be made to place the UHRXS instrument on a free-flying platform such as the Delta Launched Explorer Buss. We report on the configuration, performance, and accommodation on a free-flying platform of the revised UHRXS concept. !62