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Influence of nonstationary manner of x-ray emission on the efficiency of nucleus excitation in femtosecond laser plasmaстатья
- Авторы: Andreev A.V., Konovko A.A.
- Сборник: Proceedings of SPIE
- Том: 6256
- Год издания: 2005
- Издательство: SPIE, the International Society for Optical Engineering
- Местоположение издательства: Bellingham, WA, United States
- Первая страница: 1
- Последняя страница: 17
- Аннотация: Here we study the influence of the non-stationary manner of bremsstrahlung by hot electron component of laser plasma on the efficiency of radiative channel of nucleus excitation in laser plasma. The main idea of proposed explanation is in the following. The process of inelastic collision of electron and ion in laser plasma has a finite duration. It is natural to assume that it is this time that determines the spectral width of x-ray bremsstrahlung emission. For the hot electron component the characteristic temporal interval of inelastic collision is less than 0.1 fs. Thus the coherent bandwidth is comparable with the frequency of bremsstrahlung peak intensity. As a result the account of the finiteness of the bremsstrahlung correlation time can significantly affect on the calculated efficiency of excitation.
- Добавил в систему: Коновко Андрей Андреевич