18 July 2016 The FOXSI solar sounding rocket campaigns
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Abstract
The Focusing Optics X-ray Solar Imager (FOXSI) is, in its initial form, a sounding rocket experiment designed to apply the technique of focusing hard X-ray (HXR) optics to the study of fundamental questions about the high-energy Sun. Solar HXRs arise via bremsstrahlung from energetic electrons and hot plasma produced in solar flares and thus are one of the most direct diagnostics of are-accelerated electrons and the impulsive heating of the solar corona. Previous missions have always been limited in sensitivity and dynamic range by the use of indirect (Fourier) imaging due to the lack of availability of direct focusing optics, but technological advances now make direct focusing accessible in the HXR regime (as evidenced by the NuSTAR spacecraft and several suborbital missions). The FOXSI rocket experiment develops and optimizes HXR focusing telescopes for the unique scientific requirements of the Sun. To date, FOXSI has completed two successful flights on 2012 November 02 and 2014 December 11 and is funded for a third flight. This paper gives a brief overview of the experiment, which is sensitive to solar HXRs in the 4-20 keV range, describes its first two flights, and gives a preview of plans for FOXSI-3.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lindsay Glesener, Säm Krucker, Steven Christe, Shin-nosuke Ishikawa, Juan Camilo Buitrago-Casas, Brian Ramsey, Mikhail Gubarev, Tadayuki Takahashi, Shin Watanabe, Shin'ichiro Takeda, Sasha Courtade, Paul Turin, Stephen McBride, Van Shourt, Jane Hoberman, Natalie Foster, Juliana Vievering, "The FOXSI solar sounding rocket campaigns", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99050E (18 July 2016); doi: 10.1117/12.2232262; https://doi.org/10.1117/12.2232262
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