NSTL国家科技图书文献中心

1. Intensity ratios of ILβ/ILα and ILγ/ILα: Semi-theoretical formulae for diverse elements under photon excitation with 1.9 keV NSTL国家科技图书文献中心

Zidi, A. | Kahoul, A.... - 《Nuclear Instruments and Methods in Physics Research,Section A.Accelerators,Spectrometers,Detectors and Associated Equipment》 - 2025,1075 - 共11页

摘要：The main objective of this paper is to calculate semi-theoretical values for the L-shell X-ray intensity ratios ILi/IL alpha (i = beta and gamma) across a broad range of elements in the atomic number ...

关键词： X-ray fluorescence | Intensity ratios | Semi-theoretical calculation | And weighted average values

2. Empirical calculation of K-shell fluorescence cross sections for elements in the atomic range 16 ≤ Z ≤ 92 by photon effects ranging from 5.46 to 123.6 keV (Three-dimensional formulae) NSTL国家科技图书文献中心

Amari, K. | Kahoul, A.... - 《Physica Scripta: An International Journal for Experimental and Theoretical Physics》 - 2024,99(10) - ARTN 105402～ - 共16页

摘要：The main objective of this study is to obtain three-dimensional empirical K-shell x-ray fluorescence cross-section ( sigma K alpha,sigma K beta and sigma Ktot) values for a wide range of elements 16 <...

关键词： K-shell | XRF cross sections | empirical calculation and three-dimensional interpolation | X-RAY-FLUORESCENCE | PARAMETERS | ALLOYS | VALUES | CR

3. Investigating empirical and theoretical calculations for intensity ratios of L-Shell X-ray transitions in atoms with 39 ≤ Z ≤ 94 NSTL国家科技图书文献中心

Zidi, A. | Kahoul, A.... - 《Journal of Electron Spectroscopy and Related Phenomena》 - 2024,275 - ARTN 147473～ - 共8页

摘要：The significance of theoretical, experimental, and analytical methods in calculating the intensity ratios of L-shell transitions for diverse elements lies in their widespread applications across vario...

关键词： X-ray fluorescence | Intensity ratios | Empirical and MCDF calculation | CROSS-SECTIONS | FOCK VALUES | ELEMENTS | ENERGIES

4. Opacities of singly and doubly ionized neodymium and uranium for kilonova emission modeling NSTL国家科技图书文献中心

Floers, A. | Silva, R. F.... - 《Monthly notices of the Royal Astronomical Society》 - 2023,524(2) - 3083～3101 - 共19页

摘要：Even though the electromagnetic counterpart AT2017gfo to the binary neutron star merger GW170817 is powered by the radioactive decay of r-process nuclei, only few tentative identifications of light r-...

关键词： atomic data | opacity | radiative transfer | transients: neutron star mergers | NEUTRON-STAR MERGER | R-PROCESS | ENERGY-LEVELS | ELECTROMAGNETIC COUNTERPART | EXTENDED CALCULATIONS | TRANSITION RATES...

5. Updated database, semi-empirical and theoretical calculation of K beta/K alpha intensity ratios for elements ranging from 11Na to 96Cm EI 工程索引 NSTL国家科技图书文献中心

Hamidani, A. | Daoudi, S.... - 《Atomic data and nuclear data tables》 - 2023,149 - ARTN 101549～ - 共58页

摘要：A collection of 1118 experimental K beta/K alpha X-ray intensity ratios induced by photon impact was published recently by Daoudi et al. [1]. There were errors in some tabulated values. These errors a...

关键词： X-rays | Fundamental atomic parameters | Intensity ratio | Weighted average value | Semi -empirical MCDF calculation | X-RAY-FLUORESCENCE | VACANCY TRANSFER PROBABILITIES | Z LESS-THAN | PRODUCTION CROSS-SECTIONS | EXTERNAL MAGNETIC-FIELD...

6. Simulation of (125) I Auger emission spectrum with new atomic parameters from MCDHF calculations SCIE Web of Science核心 NSTL国家科技图书文献中心

Sampaio, J. M. | Ekman, J.... - 《Journal of Quantitative Spectroscopy & Radiative Transfer》 - 2022,277 - 共8页

摘要：New 125 I atomic decay emission data of medical interest are presented. The calculations are based on two atomic structure codes that implement the multi-configuration Dirac-Hartree-Fock method. Radia...

关键词： Multiconfiguration Dirac-Hartree-Fock | calculations | Auger cascade simulation | Auger spectrum | Geant4 simulations | I-125 targeted therapy | ELECTRON | COEFFICIENTS | CASCADE | LIBRARY

7. Review of experimental photon-induced K-beta/K-alpha intensity ratios SCIE Web of Science核心 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Daoudi, S. | Kahoul, A.... - 《Atomic data and nuclear data tables》 - 2020,132 - 共40页

摘要：In this paper, we present a compilation of the measured photon-induced K-beta/K-alpha intensity ratio values published in the literature from 1969 to 2018. In the considered period, we found about 111...

关键词： Intensity ratio | Weighted average value | Recommended weighted value

8. Updated database, new empirical and theoretical values of average L shell fluorescence yields of elements with 23 <= Z <= 96 SCOPUS Scopus数据库 SCIE Web of Science核心 EI 工程索引 NSTL国家科技图书文献中心

Sahnoune, Y. | Kahoul, A.... - 《Radiation Physics and Chemistry》 - 2020,166 - 108495-1～108495-11 - 共11页

摘要：In this paper, a summary of existing experimental data published in the period of time between 1954 and 2015 is reviewed and presented in a tabular form for average L shell fluorescence yields taken f...

关键词： Average L shell fluorescence yields | Weighted average values | Dirac-fock calculations

9. Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach SCIE Web of Science核心 NSTL国家科技图书文献中心

Menesguen, Y. | Lepy, M. -C.... - 《Journal of Quantitative Spectroscopy & Radiative Transfer》 - 2019,236 - 共10页

摘要：We combined different experimental techniques with a theoretical approach to determine a consistent set of diagram lines energies and binding energies. We propose an original approach consisting in de...

关键词： Diagram line energies | Mass attenuation coefficients

10. Experimental and theoretical determination of the L-fluorescence yields of bismuth SCOPUS Scopus数据库 SCIE Web of Science核心 NSTL国家科技图书文献中心

Menesguen, Y. | Lepy, M-C ... - 《Metrologia: International Journal of Scientific Metrology: = Internationale Zeitschrift fur Wissenschaftliche Metrologie: = Journal International de Metrologie Scientifique》 - 2018,55(5) - 621～630 - 共10页

摘要：The knowledge of atomic fundamental parameters such as the mass attenuation coefficients or fluorescence yields with low uncertainties, is of decisive importance in elemental quantification involving ...