Soft X-ray Calibration of the Co/C Multilayer Mirrors for the Objective Crystal Spectrometer on the Spectrum Röntgen-Gamma Satellite

Salim Abdali, C. Tarrio, Finn Erland Christensen, H.W. Schnopper

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Abstract

The objective crystal spectrometer (OXS) on the forthcoming Spectrum-Roentgen-Gamma satellite is designed to carry three kinds of crystals: LiF(220), Si(111) and RAP(001), placed in front of the SODART telescope. Thirty six super polished (RMS roughness <0.1nm) Si(111) substrates were coated with 65-80 periods of Co/C multilayers using electron beam evaporation deposition combined with ion polishing for the metal layers. These crystals are to be used in the energy band immediately below the C-K absorption edge of 0.284 keV. Because the crystals are to be assembled as one crystal on the OXS, the reflectivity performance as a function of energy and angle of incidence of all crystals has been measured using line radiation from an x-ray tube which provides 1.487 keV and 0.277 keV and using synchrotron radiation from 0.16 keV to 0.28 keV at the Synchrotron Ultraviolet Radiation electron storage ring a t the National Institute of Standards and Technology. The results from these measurements are discussed.
Original languageEnglish
Title of host publicationProceedings of SPIE : Multilayer and Grazing Incidence X-Ray/EUV Optics III
EditorsRichard B. Hoover, Arthur B. Walker
Publication date1996
Pages66-73
ISBN (Print)0-8194-2193-6
DOIs
Publication statusPublished - 1996
EventSPIE'S 1996 International Symposium on Optical Science, Engineering, and Instrumentation - Denver, United States
Duration: 4 Aug 19969 Aug 1996

Conference

ConferenceSPIE'S 1996 International Symposium on Optical Science, Engineering, and Instrumentation
CountryUnited States
CityDenver
Period04/08/199609/08/1996
SeriesProceedings of SPIE, the International Society for Optical Engineering
Volume2805
ISSN0277-786X

Keywords

  • Multilayers
  • X-ray
  • Spectroscopy

Cite this

Abdali, S., Tarrio, C., Christensen, F. E., & Schnopper, H. W. (1996). Soft X-ray Calibration of the Co/C Multilayer Mirrors for the Objective Crystal Spectrometer on the Spectrum Röntgen-Gamma Satellite. In R. B. Hoover, & A. B. Walker (Eds.), Proceedings of SPIE: Multilayer and Grazing Incidence X-Ray/EUV Optics III (pp. 66-73). Proceedings of SPIE, the International Society for Optical Engineering, Vol.. 2805 https://doi.org/10.1117/12.245114