A beamline for macromolecular crystallography at the Advanced Light Source
- Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)
A beamline for macromolecular crystallography has been designed for the ALS. The source will be a 37-pole wiggler with a 2-T on-axis peak field. The wiggler will illuminate three beamlines, each accepting 3 mrad of horizontal aperture. The central beamline will primarily be used for multiple-wavelength anomalous dispersion measurements in the wavelength range from 4 to 0.9 A. The beamline optics will comprise a double-crystal monochromator with a collimating premirror and a double-focusing mirror after the monochromator. The two side stations will be used for fixed-wavelength experiments within the wavelength range from 1.5 to 0.95 A. The optics will consist of a conventional vertically focusing cylindrical mirror followed by an asymmetrically cut curved-crystal monochromator. This paper presents details of the optimization of the wiggler source for crystallography, gives a description of the beamline configuration, and discusses the reasons for the choices made.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6594213
- Journal Information:
- Review of Scientific Instruments; (United States), Vol. 66:2; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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