The measurement of X-ray attenuation coefficients in the 5 to 100 keV range
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چکیده
منابع مشابه
Measurement of the X-ray mass attenuation coefficients of silver in the 5-20 keV range.
The X-ray mass attenuation coefficients of silver were measured in the energy range 5-20 keV with an accuracy of 0.01-0.2% on a relative scale down to 5.3 keV, and of 0.09-1.22% on an absolute scale to 5.0 keV. This analysis confirms that with careful choice of foil thickness and careful correction for systematics, especially including harmonic contents at lower energies, the X-ray attenuation ...
متن کاملMeasurement of the x-ray mass attenuation coefficients of gold in the 38–50-keV energy range
We used synchrotron x rays to measure the x-ray mass attenuation coefficients of gold at nine energies from 38 to 50 keV with accuracies of 0.1%. Our results are much more accurate than previous measurements in this energy range. A comparison of our measurements with calculated mass attenuation coefficients shows that our measurements fall almost exactly midway between the XCOM and FFAST calcul...
متن کاملX-Ray Attenuation Coefficients for Copper in the Energy Range 5 to 50keV
X-ray mass attenuation coefficients for polycrystalline samples of copper have been measured with a high-precision energy-dispersive method. Estimates of the scattering contributions to the attenuation coefficients are made. The photoelectric coefficients deduced from the experimental results are compared with theoretical calculations using screened hydrogen-like eigenfunctions as well as more ...
متن کاملAn iterative method to estimate x-ray attenuation coefficients in computed tomography
Introduction: The basis of image formation in Computed Tomography (CT) lies in the x-ray linear attenuation coefficient of the scanned material. Compton scattering and photoelectric effect are the dominant interactions of the x-ray photons with the subject, in the range of diagnostic radiology. These two coefficients are important in tissue characterization by Dual-Energy CT (D...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1981
ISSN: 0108-7673
DOI: 10.1107/s0108767381095883