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The FOXSI-3 sounding rocket experiment (Conference Presentation)
Author(s): P. Subramania Athiray; Lindsay Glesener; Sasha Courtade; Juliana Vievering; Juan Camilo Buitrago-Casas; Kento Furukawa; Shin-nosuke Ishikawa; Noriyuki Narukage; Tadayuki Takahashi; Shin Watanabe; Kouichi Hagino; Sophie Musset; Steven Christe; Säm Krucker; Paul Turin; Greg Dalton; Daniel Ryan; Kendra Bergstedt; Lance Davis
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Paper Abstract

The Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment aims to investigate fundamental questions about the high-energy Sun through direct imaging and spectroscopy of hard X-rays. The experiment utilizes Wolter-I type nested hard X-ray mirrors and fine-pitch semiconductor detectors, which are separated by a 2m focal length. Tol date, FOXSI has had two successful flights, on 2012 November 02 and 2014 December 11, demonstrating that the technology can measure small-scale energy releases (microflares and aggregated nanoflares) from the solar corona. The third flight for FOXSI is scheduled for August 2018. Significant improvements have been made on the FOXSI instrumentation, including upgraded optic modules with more nested mirror shells; specially designed collimators to mitigate the number of single bounce photons (ie., ghost rays) reaching the focal plane detector; and fine-pitch double-sided CdTe strip detectors to replace some of the Si-based hard X-ray detectors for better efficiency for hard X-rays. Furthermore, a CMOS based soft X-ray (SXR) instrument, “Phoenix”, will be added to FOXSI-3 by replacing one hard X-ray detector with a photon-counting SXR sensor. This will enable evaluation of the Sun via imaging spectroscopy simultaneously over a large X-ray energy range covering soft to hard X-rays. This paper will describe the overall instrument design of the FOXSI-3 experiment, which will be sensitive to solar soft and hard X-rays in the 1 – 20 keV range, as well as give a summary of insightful results and lessons from the first two flights. Possible observations for FOXSI-3 will also be discussed.

Paper Details

Date Published: 10 July 2018
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Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106992C (10 July 2018); doi: 10.1117/12.2313707
Show Author Affiliations
P. Subramania Athiray, Univ. of Minnesota, Twin Cities (United States)
Lindsay Glesener, Univ. of Minnesota, Twin Cities (United States)
Sasha Courtade, Space Sciences Lab. (United States)
Juliana Vievering, Univ. of Minnesota, Twin Cities (United States)
Juan Camilo Buitrago-Casas, Space Sciences Lab. (United States)
Kento Furukawa, The Univ. of Tokyo (Japan)
Shin-nosuke Ishikawa, Institute of Space and Astronautical Science (Japan)
Noriyuki Narukage, National Astronomical Observatory of Japan (Japan)
Tadayuki Takahashi, Institute of Space and Astronautical Science (Japan)
The Univ. of Tokyo (Japan)
Shin Watanabe, Institute of Space and Astronautical Science (Japan)
Kouichi Hagino, Institute of Space and Astronautical Science (Japan)
Sophie Musset, Univ. of Minnesota, Twin Cities (United States)
Steven Christe, NASA Goddard Space Flight Ctr. (United States)
Säm Krucker, Univ. of California (United States)
Fachhochschule NordWestschweiz (Switzerland)
Paul Turin, Space Sciences Lab. (United States)
Greg Dalton, Univ. of California, Berkeley (United States)
Daniel Ryan, NASA Goddard Space Flight Ctr. (United States)
Kendra Bergstedt, Univ. of Minnesota, Twin Cities (United States)
Lance Davis, Univ. of Minnesota, Twin Cities (United States)


Published in SPIE Proceedings Vol. 10699:
Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Shouleh Nikzad; Kazuhiro Nakazawa, Editor(s)

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