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Fourier Transform Photography: A New Method for X-Ray Astronomy

Published online by Cambridge University Press:  25 April 2016

J. G. Ables
J. G. Ables*
Affiliation:
Department of Physics, University of Adelaide
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Extract

In comparison with all other branches of astronomy, X-ray astronomy suffers from a relative dearth of image forming devices. No X-ray lens is known and image formation by reflection requires glancing incidence optics which have small fields of view and are extremely difficult to fabricate, even for the small apertures (about 2 cm2) now employed. The only other imaging device which has been successfully employed is the simplest of all, the pinhole camera. Pinhole cameras with resolutions better than 10−3 rad are easily constructed, but the apertures are very small—not greater than about 10−4 cm2. The new instrument described here is closely related to the pinhole camera and may be viewed as an attempt to overcome the aperture restrictions of this simple device.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 4 , December 1968 , pp. 172 - 173
Copyright
Copyright © Astronomical Society of Australia 1968

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References

1 Boyd, R. L. F., Space Sci. Rev., 4, 35 (1965).Google Scholar
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3 Stroke, G. W., An Introduction to Coherent Optics and Holography, Academic Press, New York 1966.Google Scholar
4 Turin, G. L., IRE Trans, on Information Theory, PGIT-10, 311 (1960).CrossRefGoogle Scholar