An introduction to the Rockets for Extended-source X-ray Spectroscopy
2019
The Rockets for Extended-source X-ray Spectroscopy (tREXS) are a series of suborbital rocket payloads being developed at The Pennsylvania State University. The tREXS science instrument is a soft X-ray grating spectrometer that will provide a large field-of-view and unmatched spectral resolving power for extended sources. Each instrument channel consists of a passive, mechanical focusing optic and an array of reflection gratings. The focal plane consists of an array of CIS113 CMOS sensors. tREXS I is currently in the design phase and is being developed for a launch in 2021 to observe diffuse soft X-ray emission from the Cygnus Loop supernova remnant. An analysis of instrument optics, gratings, and focal plane camera is discussed.
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