@inproceedings{fd186d5c595d4789ad13d44c2ba47e0a,
title = "Curved diffractive x-ray optics for astronomy",
abstract = "We report on a concept for curved diffractive X-ray optics (CDXO). CDXO would enable potential new optical designs for X-ray instruments, such as a two element spectrometer, in which the secondary element of an X- ray mirror pair is patterned with an X-ray grating. A two-element spectrometer design eliminates the grating assembly, resulting in decreased instrument mass and reduced power requirements. In addition, a two-element spectrometer may realize cost/schedule savings by eliminating a separate grating alignment effort, and yield increased effective area over three element designs. We present a raytrace concept study of a two-element spectrometer compact enough to fit within a sounding rocket payload. We also review the progress made in electron-beam lithography (EBL) techniques that would enable curved diffractive X-ray optics to be patterned, and outline a procedure by which the accuracy of the EBL patterning process can be measured interferometrically.",
author = "DeRoo, {Casey T.} and McEntaffer, {Randall L.} and Donovan, {Benjamin D.} and Fabien Gris{\'e} and Zhang, {William W.} and Maximilien Collon and Nicolas Barri{\`e}re",
note = "Funding Information: This work was supported by the Early Career Investigator Research Program of the Iowa Space Grant Consortium. We also gratefully acknowledge internal support provided by the University of Iowa. This work makes use of PyXFocus, an open source Python-based raytracing package. B. D. D. acknowledges the support of a NASA Space Technology Research Fellowship. Publisher Copyright: {\textcopyright} 2019 SPIE.; Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX 2019 ; Conference date: 13-08-2019 Through 15-08-2019",
year = "2019",
doi = "10.1117/12.2528817",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "O'Dell, {Stephen L.} and Giovanni Pareschi",
booktitle = "Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX",
address = "United States",
}