FOXSI-2: Upgrades of the Focusing Optics X-ray Solar Imager for its Second Flight

Kavli Affiliate: Tadayuki Takahashi

| First 5 Authors: Steven Christe, Lindsay Glesener, Camilo Buitrago-Casas, Shin-Nosuke Ishikawa, Brian Ramsey

| Summary:

The Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket payload flew
for the second time on 2014 December 11. To enable direct Hard X-Ray (HXR)
imaging spectroscopy, FOXSI makes use of grazing-incidence replicated focusing
optics combined with fine-pitch solid-state detectors. FOXSI’s first flight
provided the first HXR focused images of the Sun. For FOXSI’s second flight
several updates were made to the instrument including updating the optics and
detectors as well as adding a new Solar Aspect and Alignment System (SAAS).
This paper provides an overview of these updates as well as a discussion of
their measured performance.

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