The X-ray Imaging and Spectroscopy Mission (XRISM) is a JAXA/NASA collaborative mission, with ESA participation, with the objective to investigate X-ray celestial objects in the Universe with high-throughput, high-resolution spectroscopy. XRISM is expected to launch in the Japanese fiscal year 2022 (TBR) on a JAXA H-IIA rocket.
The XRISM payload consists of two instruments:
Their characteristics are similar to the SXS and SXI, respectively flown on Hitomi. XRISM is designed to recover the science capability lost with the Hitomi incident, but focuses only on the soft X-ray bands.
X-ray Mirror Assembly (XMA)
Each instrument is combined with an identical X-ray Mirror Assembly (XMA), which houses the primary (parabolic nested foils) and secondary (hyperbolic nested foils) mirrors. Each mirror contains 4 quadrants with 203 nested mirror foil segments (1624 mirror segments in a single XMA).
XRISM at GSFC
NASA/GSFC develops the Resolve detector and many of its subsystems together with the Soft X-ray Telescopes. NASA/GSFC has also responsibility for the Science Data Center charter to delevelop the analysis software for all instruments, the data processing pipeline as well as to support Guest Observers and the XRISM Guest Observer Program.