Автор |
Junzo Chihara |
Дата выпуска |
2000-01-24 |
dc.description |
Formulae for describing the photoabsorption and the photon scattering by a plasma or a liquid metal are derived in a unified manner. It is shown how the nuclear motion, the free-electron motion and the core-electron behaviour of each ion in the system determine the structure of the photoabsorption and scattering in an electron-ion mixture. The absorption cross section in the dipole approximation consists of three terms which represent the absorption caused by the nuclear motion, the absorption owing to the free-electron motion producing optical conductivity or inverse Bremsstrahlung and the absorption ascribed to the core-electron behaviour of each ion with the Doppler correction. Also, the photon scattering formula provides an analysis method for experiments observing the ion-ion dynamical structure factor (DSF), the electron-electron DSF giving plasma oscillations and the core-electron DSF yielding the x-ray Raman (Compton) scattering with a clear definition of the background scattering for each experiment, in a unified manner. A formula for anomalous x-ray scattering is also derived for a liquid metal. At the same time, Thomson scattering in plasma physics is discussed from this general point of view. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Interaction of photons with plasmas and liquid metals - photoabsorption and scattering |
Тип |
paper |
DOI |
10.1088/0953-8984/12/3/303 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
12 |
Первая страница |
231 |
Последняя страница |
247 |
Аффилиация |
Junzo Chihara; Advanced Photon Research Centre, JAERI, Kizu, Kyoto, 619-0215, Japan |
Выпуск |
3 |