Paper 13093-193
Paper 13093-193
Design, Fabrication, and Testing of Wolter-I X-ray Optic for Swift Solar Activity X-ray Imager (SSAXI) - Rocket
17 June 2024 • 17:30 - 19:00 Japan Standard Time | Room G5, North - 1F
Abstract
Swift Solar Activity X-ray Image (SSAXI), mounted on the High Resolution Coronal Imager (Hi-C) as a sub payload, is a wide field solar X-ray imager designed to image Solar X-ray flares at high cadence (>5 Hz). SSAXI consists of a Wolter-I optic with a focal length of 1 m, coupled with a monolithic CMOS X-ray sensor at the focal plane. The flight optic selected for SSAXI shows on-axis 16” Half-Power Diameter (HPD) and 5” Full Width Half Maximum (FWHM) at 4.5 keV, exceeding the 23” HPD and 9” FWHM requirement. The effective area is about 0.7 cm2 at 4.5 keV. Here we review the design, fabrication and testing of the SSAXI optic and summarize its performance.
Presenter
Ctr. for Astrophysics | Harvard & Smithsonian (United States)
Dr. Hong is a Senior Research Scientist at Harvard University. He has over 20 years of experience in development of X-ray telescopes for high energy astrophysics, planetary science and Heliophysics. As a founding member of the REXIS instrument on OSIRIS-REx, he served as an instrument scientist for REXIS. He is the science-PI of the on-going NASA PICASSO programs for development of Miniature lightweight X-ray Optics (MiXO) for planetary science. He is a Co-I of an APRA grant for development of High Resolution Energetic X-ray Imager (HREXI). He is also an active member of the NuSTAR Galactic survey working group. He also led a planetary SmallSat concept study for the CubeSat X-ray Telescope (CubeX) as a deputy-PI and an astrophysics concept study for the SmallSat Exosphere Explorer of hot Jupiters (SEEJ) as a deputy-PI. He is serving as the lead instrument scientist for the Swift Solar Activity X-ray Imager (SSAXI) project.