0431663 - FZÚ 2015 RIV GB eng J - Článek v odborném periodiku
Rackstraw, D.S. - Vinko, S.M. - Ciricosta, O. - Cho, B.I. - Engelhorn, K. - Chung, H.-K. - Brown, C.R.D. - Burian, Tomáš - Chalupský, Jaromír - Falcone, R.W. - Graves, C. - Hájková, Věra - Higginbotham, A. - Juha, Libor - Krzywinski, J. - Lee, H.J. - Messerschmidt, M. - Murphy, C. - Ping, Y. - Scherz, A. - Schlotter, W. - Toleikis, S. - Turner, J.J. - Vyšín, Luděk - Wang, T. - Wu, B. - Zastrau, U. - Zhu, D. - Nagler, B. - Lee, R. W. - Heimann, P.A. - Wark, J. S.
Opacity effects in a solid-density aluminium plasma created by photo-excitation with an X-ray laser.
High energy density physics. Roč. 11, JUN (2014), s. 59-69. ISSN 1574-1818. E-ISSN 1878-0563
Grant CEP: GA ČR(CZ) GAP108/11/1312; GA ČR GAP205/11/0571; GA ČR GA13-28721S; GA MŠMT(CZ) LG13029; GA ČR GAP208/10/2302; GA MŠMT EE2.3.30.0057
Grant ostatní: AVČR(CZ) M100101221; OP VK 4 POSTDOK(XE) CZ.1.07/2.3.00/30.0057
Institucionální podpora: RVO:68378271
Klíčová slova: opacity * X-ray laser
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 1.234, rok: 2014

The intensities within the focal spots of the output of recently developed X-ray sources based on free-electron-laser (FEL) technology are so great that atoms within the focal region can potentially absorb several photons during the few tens of femtosecond X-ray pulse. Furthermore, the duration of the FEL X-ray pulse is comparable to the Auger decay times of inner-shell holes created by the X-rays themselves. We report here how such a scenario can lead to opacity broadening of the fluorescence radiation emitted by the hot, dense plasma, which is created as a result of the X-radiation focussed onto a solid target, and in particular present calculations of the broadening of the Kα emission in a solid-density aluminium target, produced when the FEL photon energy is tuned below the Al K-edge, but is resonant with the Kα transition.
Trvalý link: http://hdl.handle.net/11104/0236259