TY - JOUR
T1 - Line spread functions of blazed off-plane gratings operated in the Littrow mounting
AU - Deroo, Casey T.
AU - McEntaffer, Randall L.
AU - Miles, Drew M.
AU - Peterson, Thomas J.
AU - Marlowe, Hannah
AU - Tutt, James H.
AU - Donovan, Benjamin D.
AU - Menz, Benedikt
AU - Burwitz, Vadim
AU - Hartner, Gisela
AU - Allured, Ryan
AU - Smith, Randall K.
AU - Günther, Ramses
AU - Yanson, Alex
AU - Vacanti, Giuseppe
AU - Ackermann, Marcelo
N1 - Publisher Copyright:
© The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Future soft x-ray (10 to 50) spectroscopy missions require higher effective areas and resolutions to perform critical science that cannot be done by instruments on current missions. An x-ray grating spectrometer employing off-plane reflection gratings would be capable of meeting these performance criteria. Off-plane gratings with blazed groove facets operating in the Littrow mounting can be used to achieve excellent throughput into orders achieving high resolutions. We have fabricated two off-plane gratings with blazed groove profiles via a technique that uses commonly available microfabrication processes, is easily scaled for mass production, and yields gratings customized for a given mission architecture. Both fabricated gratings were tested in the Littrow mounting at the Max Planck Institute for Extraterrestrial Physics (MPE) PANTER x-ray test facility to assess their performance. The line spread functions of diffracted orders were measured, and a maximum resolution of 800±20 is reported. In addition, we also observe evidence of a blaze effect from measurements of relative efficiencies of the diffracted orders.
AB - Future soft x-ray (10 to 50) spectroscopy missions require higher effective areas and resolutions to perform critical science that cannot be done by instruments on current missions. An x-ray grating spectrometer employing off-plane reflection gratings would be capable of meeting these performance criteria. Off-plane gratings with blazed groove facets operating in the Littrow mounting can be used to achieve excellent throughput into orders achieving high resolutions. We have fabricated two off-plane gratings with blazed groove profiles via a technique that uses commonly available microfabrication processes, is easily scaled for mass production, and yields gratings customized for a given mission architecture. Both fabricated gratings were tested in the Littrow mounting at the Max Planck Institute for Extraterrestrial Physics (MPE) PANTER x-ray test facility to assess their performance. The line spread functions of diffracted orders were measured, and a maximum resolution of 800±20 is reported. In addition, we also observe evidence of a blaze effect from measurements of relative efficiencies of the diffracted orders.
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U2 - 10.1117/1.JATIS.2.2.025001
DO - 10.1117/1.JATIS.2.2.025001
M3 - Article
AN - SCOPUS:84966570121
SN - 2329-4124
VL - 2
JO - Journal of Astronomical Telescopes, Instruments, and Systems
JF - Journal of Astronomical Telescopes, Instruments, and Systems
IS - 2
M1 - 025001
ER -