Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 9: Electron scattering and recombination

A 9.5: Vortrag

Montag, 12. März 2012, 17:30–17:45, V57.05

Polarimetry of electron beams by means of bremsstrahlung — •Stanislav Tashenov¹, Torbjörn Bäck², Roman Barday³, Bo Cederwall², Joachim Enders³, Anton Khaplanov², Yulia Poltoratska³, Kai-Uwe Schässburger², and Andrey Surzhykov^1,4 — ¹Physikalisches Institut Universität Heidelberg, Germany — ²Royal Institute of Technology, Stockholm, Sweden — ³Institut für Kernphysik, Technische Universität Darmstadt, Germany — ⁴GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The dominant photon emission process in electron-atom collisions, bremsstrahlung has long been considered to be sensitive to the spin of the electron [1]. 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 [2]. The particular attention will be given to the applications of this technique for polarimetry of electron beams. The results of the proof-of-principle measurement will be presented.

[1] H.K. Tseng and R.H. Pratt PRA 7 (1973) 1502

[2] S. Tashenov et al., PRL 107 (2011) 173201