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Proceedings Paper

Compound x-ray refractive lenses made of polyimide
Author(s): H. Raul Beguiristain; J. Theodore Cremer; Melvin A. Piestrup; Richard H. Pantell; Charles K. Gary; Joseph Feinstein
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Paper Abstract

Theoretical considerations of the parameters that enable the construction of compound refractive lenses are treated in this writing. The best performing compound refractive lenses that have been constructed to date were made by Adelphi Technology Inc. stacking individual paraboloidal lenses made of polyimide (KaptonTM). Polyimide lenses are capable of focusing photon with energies between 4 keV and 60 keV with focal lengths below 60 cm. They are not affected much by small misalignment of the individual lenses. Surface finish is less stringent than for visible light lenses. The increase in intensity in the image plane relative to the intensity that would have been obtained without a lens or gain measured at the experimental station of a bend magnet beam line was found to be 5.5 at 9 keV x-rays with transmission of 10% at that same energy. The measured values were in good agreement with the theoretical predictions at all wavelengths tested.

Paper Details

Date Published: 2 November 2000
PDF: 10 pages
Proc. SPIE 4144, Advances in Laboratory-based X-Ray Sources and Optics, (2 November 2000); doi: 10.1117/12.405889
Show Author Affiliations
H. Raul Beguiristain, Adelphi Technology, Inc. (United States)
J. Theodore Cremer, Adelphi Technology, Inc. (United States)
Melvin A. Piestrup, Adelphi Technology, Inc. (United States)
Richard H. Pantell, Stanford Univ. (United States)
Charles K. Gary, Adelphi Technology, Inc. (United States)
Joseph Feinstein, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 4144:
Advances in Laboratory-based X-Ray Sources and Optics
Carolyn A. MacDonald; Ali M. Khounsary, Editor(s)

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