Автор |
J C McGeorge |
Автор |
D W Nix |
Автор |
R W Fink |
Дата выпуска |
1973-03-01 |
dc.description |
High resolution intrinsic Ge(HP) and Si(Li) X-ray detectors have been used in coincidence to determine L<sub>2</sub> and L<sub>3</sub> subshell fluorescence and Coster-Kronig yields at Z=86, 88, and 94. The results are: nu <sub>2</sub>=0.498+or-0.028, omega <sub>2</sub>=0.459+or-0.025, f<sub>23</sub>=0.105+or-0.011, omega <sub>3</sub>=0.384+or-0.020 at Z=86; nu <sub>2</sub>=0.516+or-0.036, omega <sub>2</sub>=0.493+or-0.030, f<sub>23</sub>=0.053+or-0.026, omega <sub>3</sub>=0.408+or-0.027 at Z=88; and nu <sub>2</sub>=0.627+or-0.036, omega <sub>2</sub>=0.513+or-0.022, f<sub>23</sub>=0.226+or-0.016, omega <sub>3</sub>=0.509+or-0.029 at Z=94. Together with previously published data, these results provide evidence that in the L<sub>2</sub>-L<sub>3</sub> Coster-Kronig process, ejection of an M<sub>5</sub>-subshell electron is energetically possible at Z=92 and that M<sub>4</sub>- and M<sub>5</sub>-subshell electron ejection are both possible at Z=94. These conclusions are shown to be consistent with the L X-ray line width measurements of Merrill and DuMond (1961) and with the formula put forward by Coster and Kronig (1935) for the ejected electron energy. Recent theoretical predictions of the L-subshell yields compare favourably with experiment, except when Coster-Kronig transitions close to an energy threshold are involved. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Coster-Kronig and fluorescence yields for the L<sub>2</sub> and L<sub>3</sub> subshells in the high-Z region |
Тип |
paper |
DOI |
10.1088/0022-3700/6/3/026 |
Print ISSN |
0022-3700 |
Журнал |
Journal of Physics B: Atomic and Molecular Physics |
Том |
6 |
Первая страница |
573 |
Последняя страница |
583 |
Аффилиация |
J C McGeorge; Georgia Inst. Technol., Atlanta, GA, USA |
Аффилиация |
D W Nix; Georgia Inst. Technol., Atlanta, GA, USA |
Аффилиация |
R W Fink; Georgia Inst. Technol., Atlanta, GA, USA |
Выпуск |
3 |