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Development of a Slitless Spectrograph for X-Ray Astronomy

Published online by Cambridge University Press:  06 March 2019

T. Zehnpfennig
T. Zehnpfennig*
Affiliation:
American Science and Engineering Cambridge, Massachusetts 02142
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Abstract

The soft x - ray slitless spectrograph is described, and its usefulness in making rapid surveys of wide spectral regions is discussed Fabrication of the 1μ thick gold-shadowed transmission gratings used in the instrument is described. Spectra taken in the laboratory and during a solar sounding rocket flight are presented. Because a simple absorbing strip model is inadequate to explain the distribution of intensities among the spectral orders, a phase-grating model must be adopted.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 13: Eighteenth Annual Conference on Applications of X-ray Analysis, August 6-8, 1969 , 1969 , pp. 342 - 351
Copyright
Copyright © International Centre for Diffraction Data 1969

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References

1. Gursky, H. and Zehnpfennig, T., “An Image-Forming Slitless Spectrometer for Soft X-Ray Astronomy,” Appl, Opt. 5:875–876, (1966).Google Scholar
2. Zehnpfennig, T., “A Functioning Model of the Soft X-Ray Slitless Spectrometer,” Appl. Opt. 5:1855–1856, (1966).Google Scholar
3. Vaiana, G. S., Reidy, W. P., Zehnpfennig, T., Van Speybroeck, L., and Giacconi, R., “X-Ray Structures of the Sun during the Importance IN Flare of 8 June 1968,” Science 161:564–567, (1968).Google Scholar
4. Giacconi, R., Reidy, W. P., Vaiana, G. S., VanSpeybroeck, L. P., and Zehnpfennig, T. F., “Grazing Incidence Telescopes for X-Ray Astronomy,” Space Sci. Rev. 9:3–57, (1969).Google Scholar
5. Tucker, W., “Cosmic X-Ray Sources,” Astrophys. J. 148:745–765, (1967).Google Scholar
6. Parylene is a thermoplastic polymer manufactured by Union Carbide Corporation.Google Scholar
7. Electron microscope pictures of the gratings were supplied by Jeolco (U.S.A.) Inc., Medford, Massachusetts.Google Scholar
8. Mollenstedt, G., VonGrote, K. H., and Jonsson, C., “Production of Fresnal Zone Plates for Extreme Ultraviolet and Soft X Radiation” in Pattee, H. H., Cosslett, V. E., and Engstrom, A., Editors, X-Ray Optics and X-Ray Microanalysis, Third International Symposium, Acadamic Press, New York, 1963, p. 73–79.Google Scholar