Spectrometer concept and design for X-ray astronomy using a blazed transmission grating

Kathryn Flanagan; Minseung Ahn; John Davis; Ralf Heilmann; David Huenemoerder; Alan Levine; Herman Marshall; Gregory Prigozhin; Andrew Rasmussen; George Ricker; Mark Schattenburg; Norbert Schulz; Yong Zhao

doi:10.1117/12.739941

20 September 2007 Spectrometer concept and design for X-ray astronomy using a blazed transmission grating

Kathryn Flanagan, Minseung Ahn, John Davis, Ralf Heilmann, David Huenemoerder, Alan Levine, Herman Marshall, Gregory Prigozhin, Andrew Rasmussen, George Ricker, Mark Schattenburg, Norbert Schulz, Yong Zhao

Author Affiliations +

Proceedings Volume 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III; 66880Y (2007) https://doi.org/10.1117/12.739941
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

We present a spectrometer design based on a novel nanofabricated blazed X-ray transmission grating which is modeled to have superior efficiency. Here we outline a full instrument design proposed for Constellation-X which is expected to give resolving powers ~2000 (HEW). The spectrometer advantages include lower mass budget and smaller diffractor area, as well as order-of-magnitude more relaxed alignment tolerances for crucial degrees of freedom than reflection grating schemes considered in the past¹,²,³. The spectrometer readout is based on conventional CCD technology adapted to operate with very high speed and low power. This instrument will enable high resolution absorption and emission line spectroscopy in the critical band between 0.2 and 1.5 keV.

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Kathryn Flanagan, Minseung Ahn, John Davis, Ralf Heilmann, David Huenemoerder, Alan Levine, Herman Marshall, Gregory Prigozhin, Andrew Rasmussen, George Ricker, Mark Schattenburg, Norbert Schulz, and Yong Zhao "Spectrometer concept and design for X-ray astronomy using a blazed transmission grating", Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 66880Y (20 September 2007); https://doi.org/10.1117/12.739941

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