Journal of Synchrotron Radiation

Volume 15, Part 5 (September 2008)

research papers

J. Synchrotron Rad. (2008). 15, 495-505 [ doi:10.1107/S0909049508019602 ]

Diffraction of X-ray free-electron laser femtosecond pulses on single crystals in the Bragg and Laue geometry

V. A. Bushuev

Abstract: A solution of the problem of dynamical diffraction for X-ray pulses with arbitrary dimensions in the Bragg and Laue cases in a crystal of any thickness and asymmetry coefficient of reflection is presented. Analysis of pulse form and duration transformation in the process of diffraction and propagation in a vacuum is conducted. It is shown that only the symmetrical Bragg case can be used to avoid smearing of reflected pulses.

Keywords: free-electron lasers; ultrashort X-ray pulses; X-ray optics; dynamical diffraction.