New opportunities in synchrotron X-ray crystallography

Journal Article · Fri Oct 16 00:00:00 EDT 1987 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.238.4825.312· OSTI ID:6588337

Prewitt, C T; Coppens, P; Phillips, J C; Finger, L W

Several high-intensity synchrotron x-ray sources have been constructed over the past few years in the United States, West Germany, Great Britain, Japan, France, Italy, and the Soviet Union. Crystallographers have begun to use these facilities for experiments that take advantage of the characteristics of synchrotron radiation, namely, a broad distribution of wavelengths, high intensity, low divergence, strong polarization, and a pulsed time structure. In addition to more familiar diffraction experiments on single crystals and powdered samples, new types of crystallographic studies, for example, energy-dispersive and surface diffraction studies, have progressed rapidly with more general accessibility of synchrotron sources. These high-intensity sources allow diffraction experiments to be performed on very small crystals or on large biological molecules, and permit weak magnetic scattering to be detected. Anomalous dispersion experiments can exploit the ability to vary the wavelength of the radiation, and the pulsed time structure of the beam makes possible fast time-resolved experiments. Because of the availability of synchrotron x-radiation, these and other kinds of experiments will be in the forefront of crystallographic research for the next several years.

• Research Organization: Carnegie Institution of Washington, DC (USA)
• OSTI ID: 6588337
• Journal Information: Science (Washington, D.C.); (United States), Vol. 238
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
43 PARTICLE ACCELERATORS
BIOLOGICAL MATERIALS
CRYSTAL STRUCTURE
BEAM OPTICS
DIFFRACTION
DISPERSION RELATIONS
FREQUENCY DEPENDENCE
MONOCRYSTALS
POLARIZATION
POWDERS
SYNCHROTRON RADIATION
SYNCHROTRON RADIATION SOURCES
BREMSSTRAHLUNG
COHERENT SCATTERING
CRYSTALS
ELECTROMAGNETIC RADIATION
MATERIALS
RADIATION SOURCES
RADIATIONS
SCATTERING
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)
430100 - Particle Accelerators- Design
Development
& Operation