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

Steven Christe, Lindsay Glesener, Camilo Buitrago-Casas, Shin Nosuke Ishikawa, Brian Ramsey, Mikhail Gubarev, Kiranmayee Kilaru, Jeffery J. Kolodziejczak, Shin Watanabe, Tadayuki Takahashi, Hiroyasu Tajima, Paul Turin, Van Shourt, Natalie Foster, Sam Krucker

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


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.

Original languageEnglish (US)
Article number1640005
JournalJournal of Astronomical Instrumentation
Issue number1
StatePublished - Mar 1 2016

Bibliographical note

Publisher Copyright:
© 2016 World Scientific Publishing Company.


  • Sun: X-rays
  • gamma rays
  • instrumentation: detectors
  • rockets
  • telescopes


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