Unraveling the origin of the complex structure of the thorium 
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 x-ray lines in high-resolution spectra induced by heavy projectiles

Słabkowska, K.; Starosta, J; Węder, E.; Syrocki, Ł.; Polasik, M.

doi:10.1103/physreva.96.012506

Cited by 2 publications

(1 citation statement)

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“…Line spectra are regularly analysed using the Voigt functions when Lorentzian and Gaussian widths are comparable. For example, using a high-resolution crystal diffractometer, accurate measurements were made of diagram lines and of multiple-satellite, hypersatellite and hypersatellite-satellite L α1 and L α2 X-ray lines of palladium [12], of L α1,2 and L β1 X-ray lines of zirconium, molibdenum and palladium [13], and of thorium L γ Xray lines [14], produced by heavy-ion (O 6+ ) beams of 278.6 MeV. To interpret the observed spectra, relativistic multiconfigurational Dirac-Fock calculations were made for the lines with variable numbers of L-and M -shell vacancies.…”

Section: Introductionmentioning

confidence: 99%

Application of the Integrated Voigt Function in Analysis of Experimental Line Spectra

Ilakovac

2019

Acta Phys. Pol. A

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In many branches of spectroscopy, the Lorentzian and Gaussian functions are assumed to describe the intrinsic and statistical broadening effects of emission lines and of resonances. When both these broadening effects are seen, their convolutions, the Voigt functions, are used to describe shapes of the peaks. In this work, the integrated Voigt function, Vint, is introduced for the calculation of the peak shapes. Also, a new model of the step function, based on physical considerations, is introduced. The model applies the same Vint that is used to calculate the peak function. The program has been developed to analyse Kα X-ray spectra of heavy elements, measured with high-purity germanium detectors. To illustrate the method, results of analysis of two spectra are presented.

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Section: Introductionmentioning

confidence: 99%