Quick XAFS System using Quasimonochromatic Undulator Radiation at SPring-8

Journal Article · Fri Feb 02 04:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2644703· OSTI ID:21054778

Uruga, T; Tanida, H; Inoue, K; Yamazaki, H ^[1]; Irie, T ^[2]

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1. JASRI/SPring-8, 1-1-1 Koto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)
2. SES/SPring-8, 1-1-1 Koto. Sayo-cho. Sayo-gun, Hyogo 679-5198 (Japan)

A time-resolved quick x-ray absorption fine structure (QXAFS) system was designed and constructed using high flux but low power quasimonochromatic undulator radiation at a helical undulator beamline, BL40XU at SPring-8. At 12 keV, a flux of 1013 - 1014 photons/sec/0.1 % bw. was generated over an energy range of 1 keV with a total power of 7 - 15 W. A compact Si(111) channel cut monochromator having no active cooling was utilized. The monochromator was mounted on a galvano-scanner stage within an experimental hutch. The stage could be oscillated at frequencies up to 100 Hz over a 1.4-degree range. The Pt L3-edge(11.6 keV) EXAFS spectra of Pt foil was measured in transmission and fluorescence modes up to k = 15 A-1 in a period of 50 ms/scan. In this report, the design of the QXAFS system and some preliminary experimental results are presented.

• OSTI ID: 21054778
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 882; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
FINE STRUCTURE
FLUORESCENCE
FOILS
KEV RANGE
MONOCHROMATORS
PHOTONS
PLATINUM
PLATINUM ALLOYS
SILICON
SPRING-8 STORAGE RING
TIME RESOLUTION
WIGGLER MAGNETS
X-RAY SPECTRA
X-RAY SPECTROSCOPY