Pushing the boundaries of x-ray grating spectroscopy in a suborbital rocket

Casey DeRoo; Randall L. McEntaffer; Ted Schultz; William W. Zhang; Neil J. Murray; Stephen L. O'Dell; Webster Cash

doi:10.1117/12.2022244

26 September 2013 Pushing the boundaries of x-ray grating spectroscopy in a suborbital rocket

Casey DeRoo, Randall L. McEntaffer, Ted Schultz, William W. Zhang, Neil J. Murray, Stephen L. O'Dell, Webster Cash

Author Affiliations +

Proceedings Volume 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI; 88611B (2013) https://doi.org/10.1117/12.2022244
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

The Off-Plane Grating Rocket Experiment (OGRE) will greatly advance the current capabilities of soft X-ray grating spectroscopy and provide an important technological bridge towards future X-ray observatories. The OGRE sounding rocket will fly an innovative X-ray spectrograph operating at resolving powers of R ~ 2000 and effective areas < 100 cm² in the 0.2–1.5 keV bandpass. This represents a factor of two improvement in spectral resolution over currently operating instruments. OGRE will observe the astrophysical X-ray calibration source Capella, which has a linedominated spectrum and will showcase the full capabilities of the OGRE spectrograph. We outline the mission design for OGRE and provide detailed overviews of relevant technologies to be integrated into the payload, including slumped glass mirrors, blazed reflection gratings customized for the off-plane mount, and electron-multiplying CCDs (EMCCDs). The OGRE mission will bring these components to a high technology readiness level, paving the way for the use of such a spectrograph on future X-ray observatories or Explorer-class missions.

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Casey DeRoo, Casey DeRoo, Randall L. McEntaffer, Randall L. McEntaffer, Ted Schultz, Ted Schultz, William W. Zhang, William W. Zhang, Neil J. Murray, Neil J. Murray, Stephen L. O'Dell, Stephen L. O'Dell, Webster Cash, Webster Cash, "Pushing the boundaries of x-ray grating spectroscopy in a suborbital rocket", Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88611B (26 September 2013); doi: 10.1117/12.2022244; https://doi.org/10.1117/12.2022244

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