The Marshall Grazing Incidence X-ray Spectrometer ( MaGIXS )

Journal of Astronomical Instrumentation

article

P. R. Champey¹  A. R. Winebarger¹  K. Kobayashi¹  P. S. Athiray¹  E. Hertz³  S. Savage¹  B. Beabout¹  D. Beabout¹  D. Broadway¹  A. R. Bruccoleri⁴  P. Cheimets³  J. Davis¹  J. Duffy¹  L. Golub³  D. A. Gregory⁵  C. Griffith¹  H. Haight¹  R. K. Heilmann⁶  B. Hogue¹  J. Hohl³  D. Hyde¹  J. Kegley¹  J. Kolodzieczjak¹  B. Ramsey¹  J. Ranganathan¹  B. Robertson¹  M. L. Schattenburg⁶  C. O. Speegle¹  G. Vigil¹  R. Walsh⁷  B. Weddenorf⁸  E. Wright¹ 

[1] NASA George C. Marshall Space Flight Center;Center for Space Plasma and Aeronomic Research, University of Alabama in Huntsville;Center for Astrophysics – Harvard & Smithsonian;Izentis LLC;Department of Physics, University of Alabama in Huntsville;Massachusetts Institute of Technology;University of Central Lancashire;Weddendorf Design, Inc.

关键词: Soft X-ray spectrometer;    imaging spectrometer;    solar spectroscopy;    optical fabrication;    optical alignment;    X-ray testing;   

DOI  :  10.1142/S2251171722500106

学科分类：天文学(综合)

来源: World Scientific Publishing Co. Pte. Ltd.

【 摘 要 】

The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) is a sounding rocket instrument that flew on July 30, 2021 from the White Sands Missile Range, NM. The instrument was designed to address specific science questions that require differential emission measures of the solar soft X-ray spectrum from 6 – 25Å(0.5 – 2.1keV). MaGIXS comprises a Wolter-I telescope, a slit-jaw imaging system, an identical pair of grazing incidence paraboloid mirrors, a planar grating and a CCD camera. While implementing this design, some limitations were encountered in the production of the X-ray mirrors, which ended up as a catalyst for the development of a deterministic polishing approach and an improved meteorological technique that utilizes a computer-generated hologram (CGH). The opto-mechanical design approach addressed the need to have adjustable and highly repeatable interfaces to allow for the complex alignment between the optical sub-assemblies. The alignment techniques employed when mounting the mirrors and throughout instrument integration and end-to-end testing are discussed. Also presented are spatial resolution measurements of the end-to-end point-spread-function that were obtained during testing in the X-ray Cryogenic Facility (XRCF) at NASA Marshall Space Flight Center. Lastly, unresolved issues and off-nominal performance are discussed.

【 授权许可】

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