This article is cited in 4 papers

ATOMS, SPECTRA, RADIATIONS

Polarization of photons emitted in the process of resonant coherent excitation of relativistic ions under planar channeling conditions

V. V. Balashov^a, V. K. Dolinov^a, A. A. Sokolik<sup>b

a</sup> Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University
^b Institute of Spectroscopy, Russian Academy of Sciences

Abstract: Owing to the recent observation of the strong anisotropy of characteristic X-ray radiation accompanying the resonant coherent excitation of relativistic Fe²⁴⁺ ions under planar channeling conditions in a silicon crystal, the resonant coherent excitation method can be considered as a candidate for a source of polarized X-ray radiation. The Stokes parameters of the radiation have been calculated using the density matrix approach. The behavior of the polarization characteristics of the radiation in various directions has been explained by considering the properties of the resonance part of the crystal field, which excites an ion and has the form of an elliptically polarized electric field.

PACS: 32.90.+a, 34.90.+q, 42.25.Ja, 61.85.+p

Received: 02.03.2008

 English version: Journal of Experimental and Theoretical Physics Letters, 2009, 89:8, 399–403

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