Webb, N. G. and Samson, S. and Stroud, R. M. and Gamble, R. C. and Baldeschwieler, J. D.
(1976)
Remotely controlled mirror of variable geometry for small angle x-ray diffraction with synchrotron radiation.
Review of Scientific Instruments, 47
(7).
pp. 836-839.
ISSN 0034-6748.
doi:10.1063/1.1134749.
https://resolver.caltech.edu/CaltechAUTHORS:20120802-145502429
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Abstract
A total-reflecting mirror of 120-cm length was designed and built to focus synchrotron radiation emanating from the electron-positron storage ring at the Stanford Linear Accelerator Center (SPEAR). The reflecting surface is of
unpolished float glass. The bending and tilt mechanism allows very fine control of the curvature and selectability of the critical angle for wavelengths ranging from 0.5 to 3.0 Å. Elliptical curvature is used to minimize aberrations. The mirror is placed asymmetrically onto the ellipse so as to achieve a tenfold demagnification of the source. The bending mechanism reduces nonelastic
deformation (flow) and minimizes strains and stresses in the glass despite its length. Special design features assure stability of the focused image. The mirror
reduces the intensity of shorter wavelength harmonics by a factor of approximately 100.
| Item Type: | Article |
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| Additional Information: | © 1976 American Institute of Physics.
Received 15 January 1976; in final form, 19 March 1976.
We are grateful to I. Matsubara of the University of Tokyo for collaboration, to S. Doniach and D. Maurice for support and facilities at Stanford, and especially to H. Winick, A. Golde, and B. Salzburg at Stanford Synchrotron Radiation Project, and to G. Warren and R. Nelson at SLAC. We thank Libbey-Owens-Ford for contributing thirty pieces of float glass, direct from the production line, from which the mirror was selected. We acknowledge help and advice from members of the European synchrotron radiation projects, including J. Witz, U. Arndt, A. Franks, G. Rosenbaum, and M. H. F. Wilkins.
Contribution No. 5252 from the Division of Chemistry and
Chemical Engineering, California Institute of Technology.
This work was supported by the National Science Foundation under Grants Nos. GP-38855X-2, GH-39525, the National Institutes of Health, under Grants Nos. 21111-3 and GM-70469, the U .S.-Japan Cooperative Science Program, and the U.K. Science Research Council. Part of the support was also given by the National Science Foundation Grant No. DMR73-07692 A02. in cooperation with the Stanford Linear Accelerator Center and the Energy Research and Development Administration. National Institutes of Health Postdoctoral Fellowship. |
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| Funders: | | Funding Agency | Grant Number |
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| NSF | GP-38855X-2 | | NSF | GH-39525 | | NIH | 21111-3 | | NIH | GM-70469 | | U.S.-Japan Cooperative Science Program | UNSPECIFIED | | Science Research Council (SRC) | UNSPECIFIED | | NSF | DMR73-07692 | | Energy Research and Development Administration (ERDA) | UNSPECIFIED |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Caltech Division of Chemistry and Chemical Engineering | 5252 |
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| Issue or Number: | 7 |
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| Classification Code: | PACS: 07.85.-m; 06.60.-c |
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| DOI: | 10.1063/1.1134749 |
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| Record Number: | CaltechAUTHORS:20120802-145502429 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120802-145502429 |
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| Official Citation: | Remotely controlled mirror of variable geometry for small-angle x-ray diffraction with synchrotron radiation
N. G. Webb, S. Samson, R. M. Stroud, R. C. Gamble, and J. D. Baldeschwieler, Rev. Sci. Instrum. 47, 836 (1976), DOI:10.1063/1.1134749 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 32895 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: | INVALID USER |
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| Deposited On: | 02 Aug 2012 22:20 |
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| Last Modified: | 09 Nov 2021 21:30 |
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