Electronic Resource
Chester
:
International Union of Crystallography (IUCr)
Journal of synchrotron radiation
6 (1999), S. 953-956
ISSN:
1600-5775
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
Be and Al refractive lenses with long focal lengths provide a simple and efficient method of collimating synchrotron radiation. The divergence of an undulator beam at SPring-8 is reduced from 〉11 µrad full width at half maximum without the collimators to 〈3 µrad downstream of the collimators. The Be collimators have almost no losses (∼90% transmission) while the Al collimators reduce the flux by a factor of two (∼45% transmission). Data are shown at 14.4 and 18.5 keV.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0909049599009450
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