A beamline for macromolecular crystallography at the Advanced Light Source

Conference · Mon Aug 01 04:00:00 EDT 1994

OSTI ID:10125576

Padmore, H A; Earnest, T; Kim, S H; Thompson, A C; Robinson, A L

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 {angstrom}. The beamline optics will comprise a double-crystal monochromator with a collimating pre-mirror 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 {angstrom}. 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.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10125576
• Report Number(s): LBL--35574; CONF-940714--51; ON: DE95008496
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303
ADVANCED LIGHT SOURCE
BEAM TRANSPORT
CRYSTALLOGRAPHY
DESIGN
EXPERIMENTAL FACILITIES AND EQUIPMENT
MONOCHROMATORS
OPTIMIZATION
WIGGLER MAGNETS