First results from a next-generation off-plane X-ray diffraction grating

Randall McEntaffer; Casey DeRoo; Ted Schultz; Brennan Gantner; James Tutt; Andrew Holland; Stephen O’Dell; Jessica Gaskin; Jeffrey Kolodziejczak; William W Zhang; Kai-Wing Chan; Michael Biskach; Ryan McClelland; Dmitri Iazikov; Xinpeng Wang; Larry Koecher

doi:10.1007/s10686-013-9338-1

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$First results from a next-generation off-plane X-ray diffraction grating$

Journal article

Peer reviewed

First results from a next-generation off-plane X-ray diffraction grating

Randall McEntaffer, Casey DeRoo, Ted Schultz, Brennan Gantner, James Tutt, Andrew Holland, Stephen O’Dell, Jessica Gaskin, Jeffrey Kolodziejczak, William W Zhang, …

Experimental astronomy, Vol.36(1-2), pp.389-405

05/15/2013

DOI: 10.1007/s10686-013-9338-1

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https://arxiv.org/pdf/1301.5531View

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Abstract

Future NASA X-ray spectroscopy missions will require high throughput, high resolving power grating spectrometers. Off-plane reflection gratings are capable of meeting the performance requirements needed to realize the scientific goals of these missions. We have identified a novel grating fabrication method that utilizes common lithographic and microfabrication techniques to produce the high fidelity groove profile necessary to achieve this performance. Application of this process has produced an initial pre-master that exhibits a radial (variable line spacing along the groove dimension), high density (> 6000 grooves/mm), laminar profile. This pre-master has been tested for diffraction efficiency at the BESSY II synchrotron light facility and diffracts up to 55 % of incident light into usable spectral orders. Furthermore, tests of spectral resolving power show that these gratings are capable of obtaining resolving powers well above 1300 ( λ /Δ λ ) with limitations due to the test apparatus, not the gratings. Obtaining these results has provided confidence that this fabrication process is capable of producing off-plane reflection gratings for the next generation of X-ray observatories.

Astronomy

Computer Science

Physics

Chemistry and Earth Sciences

Observations and Techniques

Original Article

Physics and Astronomy

Statistics for Engineering

Details

Title: Subtitle: First results from a next-generation off-plane X-ray diffraction grating
Creators: Randall McEntaffer - University of Iowa
Casey DeRoo - University of Iowa
Ted Schultz - University of Iowa
Brennan Gantner - University of Iowa
James Tutt - The Open University
Andrew Holland - The Open University
Stephen O’Dell - Marshall Space Flight Center
Jessica Gaskin - Marshall Space Flight Center
Jeffrey Kolodziejczak - Marshall Space Flight Center
William W Zhang - Goddard Space Flight Center
Kai-Wing Chan - Goddard Space Flight Center
Michael Biskach - Goddard Space Flight Center
Ryan McClelland - Goddard Space Flight Center
Dmitri Iazikov - LightSmyth Technologies, Inc.
Xinpeng Wang - Nanonex (United States)
Larry Koecher - Nanonex (United States)
Resource Type: Journal article
Publication Details: Experimental astronomy, Vol.36(1-2), pp.389-405
DOI: 10.1007/s10686-013-9338-1
ISSN: 0922-6435
eISSN: 1572-9508
Publisher: Springer Netherlands
Language: English
Date published: 05/15/2013
Academic Unit: Physics and Astronomy; University College Courses
Record Identifier: 9984199733702771

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