Mass attenuation coefficients for elements measured with characteristic x-rays from targets excited by energetic proton

1992 ◽  
Vol 1 (2) ◽  
pp. 138-148 ◽  
Author(s):  
Wang Da-chun ◽  
Ding Xun-liang ◽  
Yang Hua ◽  
Luo Ping-an
Keyword(s):  
X Rays ◽  
Attenuation Coefficients ◽  
Energetic Proton ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Measurements of mass attenuation coefficients around the K absorption edge of semiconductors by parametric X-rays

2004 ◽  
Vol 71 (3-4) ◽  
pp. 643-645 ◽  
Author(s):  
Tadashi Akimoto ◽  
Tsuyoshi Yoshida ◽  
Ryousuke Nakamura ◽  
Kouichi Sato ◽  
Ikuo Murai ◽  
...  
Keyword(s):  
Absorption Edge ◽  
X Rays ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

The Mass Attenuation Coefficients and Effective Atomic Numbers of Ruby from Vietnam at Different Photon Energies

2013 ◽  
Vol 770 ◽  
pp. 287-290 ◽  
Author(s):  
Pruittipol Limkitjaroenporn ◽  
Suparat Tuscharoen ◽  
Jakrapong Kaewkhao
Keyword(s):  
X Rays ◽  
Attenuation Coefficients ◽  
Γ Rays ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Experimental Values ◽  
Fluorescence Spectrometer ◽  
Interaction Probability ◽  
Good Agreement ◽  
Mass Attenuation

The mass attenuation coefficients and effective atomic numbers of ruby from Vietnam were measured at the different energy of γ-rays using the Compton scattering technique. The compositions of ruby were analyzed by energy dispersive x-rays fluorescence spectrometer and showed the Al2O3 is major composition. The results of the experimental values of mass attenuation coefficients and effective atomic numbers showed the good agreement with the theoretical values. The mass attenuation coefficients decreased with the increasing in gamma rays energies, due to the higher photon interaction probability of ruby at lower energy. The effective atomic numbers found to be constant around 10.0 electrons/atom.

scholarly journals Determination of Mass Attenuation Coefficients of Th, U, Np, and Pu for Oxygen Kα X-Rays Using an Electron Microprobe

2020 ◽  
Vol 26 (2) ◽  
pp. 194-203
Author(s):  
Philipp Pöml ◽  
Xavier Llovet
Keyword(s):  
Electron Microprobe ◽  
Photoionization Cross Section ◽  
X Rays ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Monte Carlo Simulation Program ◽  
Better Than ◽  
Mass Attenuation

AbstractMass attenuation coefficients (MACs) of Th, U, Np, and Pu for oxygen X-rays have been experimentally determined using an electron microprobe. The MACs were obtained by measuring relative X-ray intensities emitted from ThO2, UO2, NpO2, and PuO2 targets, for incident electron energies from 5 to 30 keV, and processing them with the help of the computer program XMAC. The accuracy of the measured MACs is estimated to be better than 5%. Results are compared with MAC tabulations commonly used in electron probe microanalysis as well as with theoretical photoionization calculations. It is concluded that the MACs implemented in the Monte Carlo simulation program PENELOPE which are based on the photoionization cross-section calculations of Sabbatucci & Salvat [(2016). Theory and calculation of the atomic photoeffect. Rad Phys Chem121, 122–140], provide the best agreement with our measurements. The use of different MAC schemes for the analysis of mixed actinide oxide materials is discussed.

Wavelength-independent Microradiography: A Method for Non-destructive Quantification of Enamel and Dentin Mineral Concentrations using Polychromatic X-rays

1990 ◽  
Vol 69 (8) ◽  
pp. 1522-1526 ◽  
Author(s):  
F.M. Herkströter ◽  
J.J. Ten Bosch
Keyword(s):  
Mass Attenuation Coefficient ◽  
High Energy ◽  
X Rays ◽  
Tube Voltage ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Mineral Concentrations ◽  
Non Destructive ◽  
Mass Attenuation

Wavelength-independent Microradiography (WIM), described in this paper, used polychromatic, high-energy (≤ 60 kV) x-rays for determination of mineral concentrations in tooth material non-destructively. This was done with the aid of a reference step-wedge made of 94% aluminum, 6% zinc. The mass attenuation coefficient of this material has a wavelength-independent ratio to the mass attenuation coefficients of enamel and dentin. With this method, mineral concentrations of enamel and dentin samples, with a thickness up to 500 μm, were determined at 20- and at 60-kV tube voltage. The samples were demineralized for 72 and 144 h and measured again. Comparison of the data showed that mineral quantification was within 1.5%, independent of the x-rays used. Finally, these mineral concentrations-obtained from the Wavelength-independent Microradiography-were compared with measurements of the same samples by Longitudinal Microradiography. A correlation of 0.99 was found for enamel and one of 0.96 for dentin.

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