Europhys. Lett.
Volume 74, Number 4, May 2006
Page(s) 637 - 643
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 14 April 2006
Europhys. Lett., 74 (4), pp. 637-643 (2006)
DOI: 10.1209/epl/i2005-10570-7

Limits on collective X-ray scattering imposed by coherence

G. Gregori, R. Tommasini, O. L. Landen, R. W. Lee and S. H. Glenzer

Lawrence Livermore National Laboratory, University of California P.O. Box 808, CA 94551, USA

received 1 December 2005; accepted in final form 17 March 2006
published online 14 April 2006

We present the calculation of the threshold for observation of collective plasmon modes in a solid density plasma probed with a partially coherent X-ray source. We find that at lower electron densities ( $n_e \lesssim 2 \times 10^{23}\un{cm^{-3}}$) de-coherence effects pose a stringent limit to the effective divergence as well as bandwidth of the probe source. These results are more restrictive than the usual condition that the probed scale-length must be larger than the screening distance in the plasma.

42.25.Kb - Coherence.
52.25.Os - Emission, absorption, and scattering of electromagnetic radiation.
52.70.La - X-ray and gamma-ray measurements.

© EDP Sciences 2006