10 July 2018 The FOXSI-3 sounding rocket experiment (Conference Presentation)
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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.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. Subramania Athiray, P. Subramania Athiray, Lindsay Glesener, Lindsay Glesener, Sasha Courtade, Sasha Courtade, Juliana Vievering, Juliana Vievering, Juan Camilo Buitrago-Casas, Juan Camilo Buitrago-Casas, Kento Furukawa, Kento Furukawa, Shin-nosuke Ishikawa, Shin-nosuke Ishikawa, Noriyuki Narukage, Noriyuki Narukage, Tadayuki Takahashi, Tadayuki Takahashi, Shin Watanabe, Shin Watanabe, Kouichi Hagino, Kouichi Hagino, Sophie Musset, Sophie Musset, Steven Christe, Steven Christe, Säm Krucker, Säm Krucker, Paul Turin, Paul Turin, Greg Dalton, Greg Dalton, Daniel Ryan, Daniel Ryan, Kendra Bergstedt, Kendra Bergstedt, Lance Davis, Lance Davis, } "The FOXSI-3 sounding rocket experiment (Conference Presentation)", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106992C (10 July 2018); doi: 10.1117/12.2313707; https://doi.org/10.1117/12.2313707
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