Measurement of the x-ray mass attenuation coefficient and determination of the imaginary component of the atomic form factor of tin over the energy range of 29 – 60 keV

We use the x-ray extended-range technique (XERT) [C. T. Chantler et al., Phys. Rev. A 64, 062506 (2001)] to measure the mass attenuation coefficients of tin in the x-ray energy range of 29-60 keV to 0.04-3 % accuracy, and typically in the range 0.1-0.2 %. Measurements made over an extended range of...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2007-03, Vol.75 (3), Article 032702
Main Authors: de Jonge, Martin D., Tran, Chanh Q., Chantler, Christopher T., Barnea, Zwi, Dhal, Bipin B., Paterson, David, Kanter, Elliot P., Southworth, Stephen H., Young, Linda, Beno, Mark A., Linton, Jennifer A., Jennings, Guy
Format: Article
Language:English
Subjects:
ABSORPTION
ABSORPTION SPECTROSCOPY
ATOMIC AND MOLECULAR PHYSICS
ATTENUATION
COMPARATIVE EVALUATIONS
COMPTON EFFECT
CROSS SECTIONS
FINE STRUCTURE
FORM FACTORS
KEV RANGE 10-100
MATERIALS SCIENCE
POTENTIALS
RAYLEIGH SCATTERING
TIN
X RADIATION
X-RAY SPECTROSCOPY
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Summary:We use the x-ray extended-range technique (XERT) [C. T. Chantler et al., Phys. Rev. A 64, 062506 (2001)] to measure the mass attenuation coefficients of tin in the x-ray energy range of 29-60 keV to 0.04-3 % accuracy, and typically in the range 0.1-0.2 %. Measurements made over an extended range of the measurement parameter space are critically examined to identify, quantify, and correct a number of potential experimental systematic errors. These results represent the most extensive experimental data set for tin and include absolute mass attenuation coefficients in the regions of x-ray absorption fine structure, extended x-ray absorption fine structure, and x-ray absorption near-edge structure. The imaginary component of the atomic form factor f{sub 2} is derived from the photoelectric absorption after subtracting calculated Rayleigh and Compton scattering cross sections from the total attenuation. Comparison of the result with tabulations of calculated photoelectric absorption coefficients indicates that differences of 1-2 % persist between calculated and observed values.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.75.032702