X-ray mass attenuation coefficients and imaginary components of the atomic form factor of zinc over the energy range of 7.2–15.2 keV

2010 ◽  
Vol 81 (2) ◽  
Author(s):  
Nicholas A. Rae ◽  
Christopher T. Chantler ◽  
Zwi Barnea ◽  
Martin D. de Jonge ◽  
Chanh Q. Tran ◽  
...  
Keyword(s):  
Form Factor ◽  
Energy Range ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Atomic Form Factor ◽  
Mass Attenuation

Determination of LIII subshell photoelectric parameters of iridium

2017 ◽  
Vol 95 (5) ◽  
pp. 427-431
Author(s):  
Erhan Cengiz
Keyword(s):  
Form Factor ◽  
Cross Section ◽  
Narrow Beam ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Beam Geometry ◽  
Mass Attenuation Coefficients ◽  
Photoelectric Cross Section ◽  
Mass Attenuation

The LIII subshell photoelectric cross section, jump ratio, jump factor, and Davisson–Kirchner ratio of iridium have been determined by mass attenuation coefficients. The measurements have been performed using the X-ray attenuation method in narrow beam geometry. The obtained results have been compared with the tabulated values of XCOM (Berger et al. XCOM: Photon cross section database (version 1.3). NIST. Available at http://physics.nist.gov/xcom . 2005) and FFAST (Chantler et al. X-ray form factor, attenuation and scattering tables (version 2.1). NIST. Available at http://physics.nist.gov/ffast . 2005).

scholarly journals X-ray Mass attenuation coefficients of Nb2O5 over the energy range 18.9132-19.6882

2020 ◽  
Vol 1495 ◽  
pp. 012025
Author(s):  
G Manjula ◽  
S Jyothsna ◽  
A Mahesh Kumar ◽  
Bunty Rani Roy ◽  
Ashok Kumar Yadav ◽  
...  
Keyword(s):  
Energy Range ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

High-accuracy measurement of mass attenuation coefficients and the imaginary component of the atomic form factor of zinc from 8.51 keV to 11.59 keV, and X-ray absorption fine structure with investigation of zinc theory and nanostructure

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Ruwini S. K. Ekanayake ◽  
Christopher T. Chantler ◽  
Daniel Sier ◽  
Martin J. Schalken ◽  
Alexis J. Illig ◽  
...  
Keyword(s):  
High Accuracy ◽  
Imaginary Component ◽  
Local Dynamic ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Dynamic Motion ◽  
Mass Attenuation Coefficients ◽  
Atomic Form Factor ◽  
X Ray Absorption ◽  
Mass Attenuation

High-accuracy X-ray mass attenuation coefficients were measured from the first X-ray Extended Range Technique (XERT)-like experiment at the Australian Synchrotron. Experimentally measured mass attenuation coefficients deviate by ∼50% from the theoretical values near the zinc absorption edge, suggesting that improvements in theoretical tabulations of mass attenuation coefficients are required to bring them into better agreement with experiment. Using these values the imaginary component of the atomic form factor of zinc was determined for all the measured photon energies. The zinc K-edge jump ratio and jump factor are determined and results raise significant questions regarding the definitions of quantities used and best practice for background subtraction prior to X-ray absorption fine-structure (XAFS) analysis. The XAFS analysis shows excellent agreement between the measured and tabulated values and yields bond lengths and nanostructure of zinc with uncertainties of from 0.1% to 0.3% or 0.003 Å to 0.008 Å. Significant variation from the reported crystal structure was observed, suggesting local dynamic motion of the standard crystal lattice. XAFS is sensitive to dynamic correlated motion and in principle is capable of observing local dynamic motion beyond the reach of conventional crystallography. These results for the zinc absorption coefficient, XAFS and structure are the most accurate structural refinements of zinc at room temperature.

Measurements of the X Ray Mass Attenuation Coefficients for Some TL Dosemeters in the Energy Range 5-12 keV

1982 ◽  
Vol 3 (1-2) ◽  
pp. 109-112 ◽  
Author(s):  
C. Bacci ◽  
A. Cannata ◽  
A. Esposito ◽  
C. Furetta ◽  
M. Pelliccioni
Keyword(s):  
Energy Range ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Measurements of the X Ray Mass Attenuation Coefficients for Some TL Dosemeters in the Energy Range 5-12 keV

1982 ◽  
Vol 3 (1-2) ◽  
pp. 109-112
Author(s):  
C. Bacci ◽  
A. Cannata ◽  
A. Esposito ◽  
C. Furetta ◽  
M. Pelliccioni
Keyword(s):  
Energy Range ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

X-Ray Attenuation Coefficients for Copper in the Energy Range 5 to 50 ke V

1982 ◽  
Vol 37 (5) ◽  
pp. 451-459 ◽  
Author(s):  
L. Gerward
Keyword(s):  
Energy Range ◽  
High Precision ◽  
Theoretical Calculations ◽  
Experimental Results ◽  
Energy Dispersive ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

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 rigorous relativistic wavefunctions.

Study on X-ray Mass Attenuation Coefficients of Nb2O5 over the Energy Range 18.9132- 19.6882

2021 ◽  
pp. 65-69
Author(s):  
G. Manjula ◽  
S. Jyothsna ◽  
A. Mahesh Kumar ◽  
Bunty Rani Roy ◽  
Ashok Kumar Yadav ◽  
...  
Keyword(s):  
Energy Range ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation
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