The photoelectric cross section of gamma rays in the energy range 43 to 152 keV

Machali, F.; Al-Barakati, G G; Elsayed, Ashraf; Altaf, W J

doi:10.1088/0305-4608/17/5/023

Cited by 8 publications

(9 citation statements)

References 11 publications

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“…However, the XCOM calculation appears to be noticeably higher than that of Chantler towards the highenergy region. Previous experimental results [32,33,3,34] are clearly unable to differentiate between the theories at the 2% level.…”

Section: Comparison Between Theory and Experimentsmentioning

confidence: 68%

“…Semiempirical tabulation of Henke et al [31] (dotted-dashed line) are available up to 30 keV. Other experimental data include those from Machali et al [32] (asterisks), Puttaswamy et al [33] (diamonds), Sandiago and Gowds [3] (triangles) and Visweswara et al [34] (squares). [32] (asterisks), Figure 11.…”

Section: Summary Of Uncertaintiesmentioning

confidence: 99%

“…Other experimental data include those from Machali et al [32] (asterisks), Puttaswamy et al [33] (diamonds), Sandiago and Gowds [3] (triangles) and Visweswara et al [34] (squares). [32] (asterisks), Figure 11. Absolute XAFS of silver compared with the theoretical base lines (Chantler [28,9], XCOM [30]) which make no allowance for XAFS.…”

Section: Summary Of Uncertaintiesmentioning

confidence: 99%

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Measurement of the x-ray mass attenuation coefficient of silver using the x-ray-extended range technique

Tran

Chantler

Barnea

et al. 2004

J. Phys. B: At. Mol. Opt. Phys.

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We used the x-ray-extended range technique to measure the x-ray mass attenuation coefficients of silver in the 15-50 keV energy range with a level of uncertainty between 0.27% and 0.4% away from the K-edge. The imaginary part of the atomic form factor of silver was derived by subtracting the scattering component from the measured total mass attenuation coefficients. Discrepancies between the measured mass attenuation coefficients and alternative theoretical predictions are discussed.

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Section: Comparison Between Theory and Experimentsmentioning

confidence: 68%

Section: Summary Of Uncertaintiesmentioning

confidence: 99%

Section: Summary Of Uncertaintiesmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of the x-ray mass attenuation coefficient of silver using the x-ray-extended range technique

Tran

Chantler

Barnea

et al. 2004

J. Phys. B: At. Mol. Opt. Phys.

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“…The development of theoretical and experimental investigations of the interaction of X-rays with atoms has been a continuing effort (Rehr & Albers, 2000;Joly, 2001;Chantler, 1995Chantler, , 2009Pettifer et al, 1999;Machali et al, 1987;Mica et al, 1985;Lytle, 2007). X-ray mass attenuation coefficients [/] and form factors describe the interaction of X-rays with atoms and are widely used.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the X-ray mass attenuation coefficients of silver in the 5–20 keV range

Islam

Tantau

Rae

et al. 2014

J Synchrotron Radiat

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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 of high-Z elements can be measured with high accuracy even at low X-ray energies (<6 keV). This is the first high-accuracy measurement of X-ray mass attenuation coefficients of silver in the low energy range, indicating the possibility of obtaining high-accuracy X-ray absorption fine structure down to the L1 edge (3.8 keV) of silver. Comparison of results reported here with an earlier data set optimized for higher energies confirms accuracy to within one standard error of each data set collected and analysed using the principles of the X-ray extended-range technique (XERT). Comparison with theory shows a slow divergence towards lower energies in this region away from absorption edges. The methodology developed can be used for the XAFS analysis of compounds and solutions to investigate structural features, bonding and coordination chemistry.

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“…The determination of the differential cross-section values was carried out following the formula for relative measurements, compared to the differential cross-section of the 28 Si(d, d) reaction which does not deviate from the Rutherford formula at E d,lab = 900 keV [9], for the same scattering angle, as follows:…”

Section: Analysis and Discussionmentioning

confidence: 99%

Study of selected differential cross-sections of the 28Si(d, p0, p1, p2, p3) reactions for NRA purposes

Kokkoris

Michalakis

Μisaelides

et al. 2009

Nuclear Instruments and Methods in Physics Research Section B:

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The photoelectric cross section of gamma rays in the energy range 43 to 152 keV

Cited by 8 publications

References 11 publications

Measurement of the x-ray mass attenuation coefficient of silver using the x-ray-extended range technique

Measurement of the x-ray mass attenuation coefficient of silver using the x-ray-extended range technique

Measurement of the X-ray mass attenuation coefficients of silver in the 5–20 keV range

Study of selected differential cross-sections of the 28Si(d, p0, p1, p2, p3) reactions for NRA purposes

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