Combined Imaging System for X-ray Fluorescence and Transmission X-ray Microtomography

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

DOI:https://doi.org/10.1063/1.1758052· OSTI ID:20652879

Ohigashi, Takuji; Watanabe, Norio; Yokosuka, Hiroki; Aoki, Sadao ^[1]

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1. Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573 (Japan)

A full-field imaging x-ray fluorescence computed microtomography system was designed for quantitative elemental analysis. An x-ray fluorescence imaging microscope combined with transmission x-ray microtomographic system was constructed at BL3C2 of the Photon Factory, KEK, Japan. The quasi-monochromatic beam produced by a double-multilayer monochromator was used as an incident beam. X-ray fluorescence images were obtained and were reconstructed by simultaneous algebraic reconstruction technique (SART) with taking into account of the self-absorption effects of the incident beam and the x-ray fluorescence of the sample. Distribution of Fe in a standard sample (1.60 mol/l FeCl2 solution in a capillary tube) was observed to evaluate the system. The density of Fe reconstructed without correction of the self-absorption effect was 9.26 % of the actual density. Using this correction method, 73.0 % of the actual density could be obtained.

• OSTI ID: 20652879
• Journal Information: AIP Conference Proceedings, Vol. 705, Issue 1; Conference: 8. international conference on synchrotron radiation instrumentation, San Francisco, CA (United States), 25-29 Aug 2003; Other Information: DOI: 10.1063/1.1758052; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM OPTICS
CAPILLARIES
CORRECTIONS
EQUIPMENT
FLUORESCENCE
IMAGE PROCESSING
IMAGES
JAPANESE ORGANIZATIONS
MICROSCOPES
MICROSCOPY
MONOCHROMATIC RADIATION
PHOTONS
SELF-ABSORPTION
SOLUTIONS
SYNCHROTRON RADIATION
TOMOGRAPHY
TRANSMISSION
X RADIATION
X-RAY FLUORESCENCE ANALYSIS