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Polarization transfer of bremsstrahlung arising from spin-polarized electrons

Martin, R. and Weber, G. and Barday, R. and Fritzsche, Y. and Spillmann, U. and Chen, W. and DuBois, R. D. and Enders, J. and Hegewald, M. and Hesse, S. and Surzhykov, A. and Thorn, D. B. and Trotsenko, S. and Wagner, M. and Winters, D. F. A. and Yerokhin, V. A. and Stöhlker, Th. (2012):
Polarization transfer of bremsstrahlung arising from spin-polarized electrons.
In: Physical Review Letters, American Physical Society, pp. 264801 1-5, 108, (26), [Article]

Abstract

We report on a study of the polarization transfer between transversely polarized incident electrons and the emitted x rays for electron-atom bremsstrahlung. By means of Compton polarimetry we performed for the first time an energy-differential measurement of the complete properties of bremsstrahlung emission related to linear polarization, i.e., the degree of linear polarization as well as the orientation of the polarization axis. For the high-energy end of the bremsstrahlung continuum the experimental results for both observables show a high sensitivity on the initial electron spin polarization and prove that the polarization orientation is virtually independent of the photon energy.

Item Type: Article
Erschienen: 2012
Creators: Martin, R. and Weber, G. and Barday, R. and Fritzsche, Y. and Spillmann, U. and Chen, W. and DuBois, R. D. and Enders, J. and Hegewald, M. and Hesse, S. and Surzhykov, A. and Thorn, D. B. and Trotsenko, S. and Wagner, M. and Winters, D. F. A. and Yerokhin, V. A. and Stöhlker, Th.
Title: Polarization transfer of bremsstrahlung arising from spin-polarized electrons
Language: English
Abstract:

We report on a study of the polarization transfer between transversely polarized incident electrons and the emitted x rays for electron-atom bremsstrahlung. By means of Compton polarimetry we performed for the first time an energy-differential measurement of the complete properties of bremsstrahlung emission related to linear polarization, i.e., the degree of linear polarization as well as the orientation of the polarization axis. For the high-energy end of the bremsstrahlung continuum the experimental results for both observables show a high sensitivity on the initial electron spin polarization and prove that the polarization orientation is virtually independent of the photon energy.

Journal or Publication Title: Physical Review Letters
Volume: 108
Number: 26
Publisher: American Physical Society
Uncontrolled Keywords: Bremsstrahlung, Polarized Electron Source, Linear Polarization, Polarimetry, Polarized Electron Beam, Polarized Photons, Si(Li) Detectors, SFB634, C5
Divisions: 05 Department of Physics > Institute of Nuclear Physics
05 Department of Physics
Date Deposited: 11 Feb 2014 10:03
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