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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 55, Iss. 4 — Apr. 1, 1965
  • pp: 345–347

Aplanatic Telescope for Soft X Rays

R. GIACCONI, N. F. HARMON, R. F. LACEY, and Z. SZILAGYI  »View Author Affiliations


JOSA, Vol. 55, Issue 4, pp. 345-347 (1965)
http://dx.doi.org/10.1364/JOSA.55.000345


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Abstract

An aplanatic total reflection telescope for use in the soft x-ray region has been constructed and tested in this laboratory. The telescope has a collecting area of 2 cm2, an angular resolution of 1 min of arc, and a field of view of 40 min of arc. The focal length is 64 cm. The grazing angle of incidence on the telescope surface is about 1° for paraxial radiation. This results in an efficiency of reflection of 0.2% in the 8–12 Å region and 5.0% at 44 Å. These characteristics make it particularly suited to the study of celestial x-ray sources from rocket- and satellite-borne instrumentation.

Citation
R. GIACCONI, N. F. HARMON, R. F. LACEY, and Z. SZILAGYI, "Aplanatic Telescope for Soft X Rays," J. Opt. Soc. Am. 55, 345-347 (1965)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-55-4-345

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