16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-85
Paper 13093-85

Hard x-ray focal plane detectors onboard the FOXSI-4 sounding rocket for solar flare observation

21 June 2024 • 08:30 - 08:50 Japan Standard Time | Room G414/415, North - 4F

Abstract

The Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment enables high-resolution hard-X-ray solar observations with high sensitivity using the direct imaging method. The fourth flight, FOXSI-4, is scheduled to launch in spring 2024, aiming for the first-ever focusing imaging spectroscopic observation of a medium to large solar flare in hard X-rays. We developed wide-gap CdTe Double-sided Strip Detectors (CdTe-DSDs) for the hard X-ray focal plane detector, which achieved an energy resolution of ~1 keV (FWHM) and a high position resolution of ~ 30 µm with high detection efficiency. We also developed a new onboard data acquisition (DAQ) system with a Raspberry Pi, an FPGA board SPMU-001, and a SpaceWire interface for controlling all CdTe-DSDs and realizing fast readout of the observation data whose counting rate is estimated to be ~ 5000 counts per second. We give an overview of the hard X-ray telescope and the development of the DAQ system for the CdTe-DSDs.

Presenter

Takahiro Minami
The Univ. of Tokyo (Japan), Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Takahiro Minami is a Ph.D. student majoring in astrophysics at the Department of Physics, University of Tokyo. His work focuses specifically on developing Hard X-ray detectors and their detector response modeling for application to various fields, including astrophysics, nuclear medicine, and non-destructive elemental analysis. He has also joined the Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment and worked on the hard X-ray detector development.
Presenter/Author
Takahiro Minami
The Univ. of Tokyo (Japan), Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Author
Space Sciences Lab. (United States)
Author
Univ. of Minnesota, Twin Cities (United States)
Author
Univ. of Minnesota, Twin Cities (United States)
Author
Athanasios Pantazides
Univ. of Minnesota, Twin Cities (United States)
Author
Univ. of Minnesota, Twin Cities (United States)
Author
Space Sciences Lab. (United States), Univ. of California, Berkeley (United States)
Author
Institute of Space and Astronautical Science (Japan), Japan Aerospace Exploration Agency (Japan), Kavli Institute for the Physics and Mathematics of the Universe, The Univ. of Tokyo (Japan)
Author
Noriyuki Narukage
National Astronomical Observatory of Japan (Japan), Graduate University for Advanced Studies, SOKENDAI (Japan)
Author
Kavli Institute for the Physics and Mathematics of the Universe (Japan), The Univ. of Tokyo (Japan)