Protein Folding Dynamics Detected By Time-Resolved Synchrotron X-ray Small-Angle Scattering Technique

2007 ◽  
Author(s):  
Tetsuro Fujisawa ◽  
Satoshi Takahashi
Keyword(s):  
Protein Folding ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Time Resolved ◽  
X Ray ◽  
Angle Scattering ◽  
Scattering Technique ◽  
Folding Dynamics

Small-Angle X-ray Scattering at the ESRF High-Brilliance Beamline

1997 ◽  
Vol 30 (5) ◽  
pp. 867-871 ◽  
Author(s):  
P. Bösecke ◽  
O. Diat
Keyword(s):  
Small Angle ◽  
Small Angle Scattering ◽  
Optical Systems ◽  
Photon Flux ◽  
X Rays ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Angle Scattering ◽  
Ray Scattering

The high-brilliance beamline (BL4/ID2) at the European Synchrotron Radiation Facility (ESRF) in Grenoble has been constructed with the emphasis on time-resolved small-angle X-ray scattering and macromolecular crystallography. It has been open to users for two years. The beamline has opened up new areas in small-angle scattering research, facilitating (a) small-angle crystallography on structures with unit cells of several hundredths of nanometres, (b) overlap with the light scattering range for the study of optical systems, (c) high photon flux for time-resolved experiments and (d) a high spatial coherence allowing submicrometre imaging with X-rays. The set-up and the detector system of the small-angle scattering station are presented. A method for obtaining absolute scattering intensities is described. The parasitic background at the station is discussed in terms of absolute scattering intensities.

Performance and First Results of the ELETTRA High-Flux Beamline for Small-Angle X-ray Scattering

1997 ◽  
Vol 30 (5) ◽  
pp. 872-876 ◽  
Author(s):  
H. Amenitsch ◽  
S. Bernstorff ◽  
M. Kriechbaum ◽  
D. Lombardo ◽  
H. Mio ◽  
...  
Keyword(s):  
Small Angle ◽  
Small Angle Scattering ◽  
Design Parameters ◽  
High Flux ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Angle Scattering ◽  
Scattering Measurements ◽  
Ray Scattering

A new beamline for small-angle X-ray scattering (SAXS) has recently been constructed and is presently under final commissioning at the 2 GeV storage ring ELETTRA. It has been designed specifically for time-resolved studies of non-crystalline and fibrous materials and has been optimized for small-angle scattering measurements. The beamline operates with a SAXS resolution between 10 and about 1400 Å in d spacing (at 8 keV) and has been optimized with respect to high flux at the sample [of the order of 1013 photons s−1 for 8 keV photons (2 GeV, 400 mA)]. Soon it will be possible to perform simultaneously wide-angle diffraction measurements in the d-spacing range 1.2–8 Å (at 8 keV). In order to allow time-resolved (resolution ~1 ms) small-angle scattering measurements, a high-power 57-pole wiggler is used as the beamline source. From its beam, one of three discrete energies, 5.4, 8 and 16 keV, can be selected with a double-crystal monochromator, which contains three pairs of asymmetrically cut plane Si(111) crystals. Downstream, the beam is focused horizontally and vertically by a toroidal mirror. Commissioning tests of this new SAXS beamline showed that all design parameters have been realized.

Neutron and X-ray small-angle scattering with Fe-based metallic glasses

1988 ◽  
Vol 97 ◽  
pp. 227-230 ◽  
Author(s):  
P. Lamparter ◽  
S. Steeb ◽  
D.M. Kroeger ◽  
S. Spooner
Keyword(s):  
Metallic Glasses ◽  
Small Angle ◽  
Small Angle Scattering ◽  
X Ray ◽  
Angle Scattering

Dimensions de micelles mixtes de p-alkylbenzènesulfonates par diffusion central des rayons X

1977 ◽  
Vol 10 (1) ◽  
pp. 37-44 ◽  
Author(s):  
C. Cabos ◽  
P. Delord ◽  
J. Rouviere
Keyword(s):  
Small Angle ◽  
Small Angle Scattering ◽  
Micellar Solutions ◽  
Probable Structure ◽  
X Ray ◽  
Absolute Scale ◽  
Angle Scattering ◽  
Scattering Measurements ◽  
Two Component ◽  
Most Probable Structure

The structure of micellar solutions is determined from X-ray small-angle scattering measurements on an absolute scale. The most probable structure is chosen by comparison with spherical cylindrical and lamellar models. This method is applied to two-component micelles and it is possible to follow the variation of micellar dimensions when the concentration of each component is varying.

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