Present Status of BL40B2 and BL40XU at SPring-8 (Beamlines for Small Angle X-ray Scattering)

Journal Article · Wed May 12 04:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1757802· OSTI ID:20652947

Inoue, Katsuaki; Oka, Toshihiko; Miura, Keiko; Yagi, Naoto ^[1]

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1. SPring-8/JASRI, Mikazuki, Sayo, Hyogo, 679-5198 (Japan)

BL40B2 and BL40XU were built at SPring-8 in 1999. They are now open for public users and many kinds of small angle x-ray scattering experiments are carried out using these beamlines. We report the present status of these two beamlines. Also some examples of experimental results that were obtained at these beamlines are shown. BL40B2 is for recording small-angle x-ray scattering from non-crystalline biological materials. The light source is a bending magnet and the white x-rays generated by are monochromatized using a double crystal monochromator and focused by a 1-m-long rhodium-coated bent-cylinder mirror. The photon flux is 1x1011 photons/sec at 12.4 keV. The tunable energy range is 7 keV {approx} 18 keV. As a detector, an imaging plate area detector (RIGAKU R-AXIS IV++) is installed. Two fixed-length vacuum paths allow camera lengths of 400 mm and 1000 mm. This beamline is suitable for static measurements with high accuracy and high resolution. The aim of BL40XU is to provide very high flux of x-rays for various experiments. On this concept, BL40XU was designed to use the fundamental undulator radiation as a quasi-monochromatic x-ray beam so that the use of the crystal monochromator was eliminated. The x-ray source of BL40XU is a helical undulator and its flux is estimated to be 1x10 and 15 photons/sec at 12.4 keV. The x-ray is focused horizontally and vertically by bending two water-cooled focusing mirrors. So far, various time-resolved diffraction and scattering experiments on biomaterials and polymers have been carried out.

• OSTI ID: 20652947
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 705; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
BIOLOGICAL MATERIALS
KEV RANGE 01-10
KEV RANGE 10-100
LIGHT SOURCES
MAGNETS
MIRRORS
MONOCHROMATIC RADIATION
MONOCHROMATORS
PHOTONS
POLYMERS
PROTEINS
RHODIUM
SMALL ANGLE SCATTERING
SPRING-8 STORAGE RING
SYNCHROTRON RADIATION
TIME RESOLUTION
X-RAY DIFFRACTION
X-RAY SOURCES
X-RAY SPECTRA