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Accueil > Séminaires > Séminaires passés > Seminaires de 2012 > Polarization correlations in radiative processes in relativistic atomic collisions and their applications for polarimetry of electron and heavy ion beams

S. Tashenov (Physics Institute, Heidelberg University, Germany)

Polarization correlations in radiative processes in relativistic atomic collisions and their applications for polarimetry of electron and heavy ion beams

Lundi 30 janvier 2012

The dominant photon emission processes in electron-atom and electron-ion collisions, i.e. Bremsstrahlung and Radiative Recombination have long been considered to be sensitive to the spins of the collision particles [1,2]. However only recently experimental studies in this direction became possible. The first measurement of the correlation between the orientation of the electron spin and photon linear polarization in bremsstrahlung will be
presented [3]. The classical and fully-relativistic quantum mechanical interpretations of the results will be discussed. The particular attention of the talk will be given to the applications of this technique for polarimetry of electron and heavy ion beams. The results of the proof-of-principle measurement with the electron beam will be also presented.

[1] H.K. Tseng and R.H. Pratt PRA 7 (1973) 1502
[2] A. Surzhykov et al., PRL 94 (2005) 203202
[3] S. Tashenov et al., PRL 107 (2011) 173201