Oxygen inducedK-shell ionization of selected elements from sulphur to bromine

Knaf, B.; Presser, G.; Stähler, J.

doi:10.1007/bf01881003

Cited by 14 publications

(10 citation statements)

References 49 publications

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“…The experimental setup was similar to that of our previous experiments with oxygen projectiles and has already been described in detail [10]. Only those modifications relevant for the present measurements will therefore be pointed out here.…”

Section: Methodsmentioning

confidence: 97%

“…We have called this theoretical cross section a cPwBA to be consistent with the nomenclature used in a previous publication [10]. The correction which originates from an increase of the effective binding energy of the electron to be ionized is obtained from averaging over contributions from all impact parameters to the ionization probability.…”

Section: B Intensity Ratios Of K-shell X-ray Transitionsmentioning

confidence: 96%

“…III and Ref. 10 for a detailed discussion of the method). The calculated corrections to single hole values were up to 25% for Ti, 10% for Fe and 5% for Ge.…”

Section: Comparison Of Experimental and Theoretical Cross Sectionsmentioning

confidence: 98%

“…The mean number of L-shell holes (ilL) present at the time of K~ or K~ emission was obtained from a comparison of experimental X-ray energies and calculated transition energies for different defect configurations [10]. The calculations were performed with a Dirac-Fock-Slater program [16].…”

Section: A Energy Shifts Of the Characteristic Linesmentioning

confidence: 99%

“…Ref. [4][5][6][7][8][9][10] have shown that the corrections included into the CPSS model give a considerable improvement of the calculated K-shell ionization cross sections for projectiles heavier than helium ions. In the present work a study of K-shell ionization by fluorine ions was undertaken for the range…”

Section: Introductionmentioning

confidence: 98%

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K-shell X-ray production for fluorine ions on target elements Ti to La

1979

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The production of target atom K-shell X-rays has been studied for 2 to 28 MeV fluorine ions incident on thin solid targets of 14 elements with atomic numbers Z2=22 to 57.Total X-ray production cross sections, energy shifts of K~ and K~ lines and K~/K, intensity ratios were measured with a Si(Li) detector. The results of cross section measurements are compared with theoretical predictions of inner shell ionization. In most cases, satisfactory agreement between measured cross sections and theoretical Coulomb ionization cross sections, corrected for the perturbation of the target atom by the projectile charge and for relativistic effects, was obtained.

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Section: Methodsmentioning

confidence: 97%

Section: B Intensity Ratios Of K-shell X-ray Transitionsmentioning

confidence: 96%

“…III and Ref. 10 for a detailed discussion of the method). The calculated corrections to single hole values were up to 25% for Ti, 10% for Fe and 5% for Ge.…”

Section: Comparison Of Experimental and Theoretical Cross Sectionsmentioning

confidence: 98%

Section: A Energy Shifts Of the Characteristic Linesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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K-shell X-ray production for fluorine ions on target elements Ti to La

1979

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Inner-shell ionization created by fluorine ions in nearly symmetric collisions

1980

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We have measured projectile and target X-ray cross sections for F + Si, S, Ar and Kr collisions at projectile energies from 1 to 25 MeV. The experiments were performed under single collision conditions using a differentially pumped gas target. X-rays were measured by a Si(Li) detector and a proportional counter. The experimental cross sections are compared to predictions of theoretical models for direct and quasi-molecular ionization. Effects of multiple ionization that influence the K-shell fluorescence yields were examined using experimental information from line energy shifts and intensity ratios.

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