Автор |
K D Sevier |
Автор |
Gy Szabo |
Автор |
F Folkmann |
Дата выпуска |
1981-11-14 |
dc.description |
The average X-ray production cross sections and energies for Ar projectile K<sub>alpha </sub>, K<sub>beta </sub> and K REC (radiative electron capture) rays were measured for C target foils of effective thicknesses 8-450 mu g cm<sup>-2</sup>. A model is constructed which describes these yields, the several parameters employed being fitted to the data by a chi-square fit program. The parameters involved represent the main Ar K vacancy production (a single cross section parameter, sigma <sub>v</sub>'), the Auger and X-ray decay modes for projectiles within and after the foil, and the in-foil radiative and non-radiative electron capture (REC and NREC, respectively) decay modes. Variations in these parameters with projectile energy are estimated, and in-foil collisionally induced configuration alteration effects are considered. From the fit parameters it is possible to estimate several projectile characteristics, e.g. Ar K vacancy and K<sub>alpha </sub> and K<sub>beta </sub> X-ray production cross section, in-foil and post-foil average fluorescence yields and the NREC cross section. From the energy measurements the average Ar projectile configuration of an ion with a K vacancy in the thin target foil limit is estimated. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Foil thickness dependence of Ar K X-rays from 56 MeV Ar<sup>12+</sup> bombarding carbon foils |
Тип |
paper |
DOI |
10.1088/0022-3700/14/21/020 |
Print ISSN |
0022-3700 |
Журнал |
Journal of Physics B: Atomic and Molecular Physics |
Том |
14 |
Первая страница |
4065 |
Последняя страница |
4091 |
Аффилиация |
K D Sevier; GSI, Darmstadt, West Germany |
Аффилиация |
Gy Szabo; GSI, Darmstadt, West Germany |
Аффилиация |
F Folkmann; GSI, Darmstadt, West Germany |
Выпуск |
21 |