This title appears in the Scientific Report : 2011 

Particle acceleration in laser-induced relativistic plasmas: a novel approach for polarized sources?
Büscher, M.
Engin, I. / Gibbon, P. / Karmakar, A. / Lehrach, A. / Mennicken, T. / Raab, N. / Toncian, M. / Toncian, T. / Willi, O.
Jülich Supercomputing Center; JSC
Kernphysikalische Großgeräte; IKP-4
Experimentelle Hadrondynamik; IKP-2
Journal of physics / Conference Series, 295 (2011) S. 012151
Bristol IOP Publ. 2011
Journal Article
Computational Science and Mathematical Methods
Physik der Hadronen und Kerne
Scientific Computing
Journal of Physics : Conference Series 295
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The physics of laser-plasma interactions has undergone dramatic improvements in recent years. By directing a multi-TW, ultrashort laser pulse onto a thin foil or a gas jet, it is nowadays possible to produce multi-MeV proton, ion and electron beam s. Although much progress has been made in characterizing and improving the quality of such laser-generated beams, it is still an untouched issue whether the laser-generated beams are or can be spin-polarized and, thus, whether laser-based polarized sourc es are conceivable. To this end, one may either think of a selection of certain spin states through the huge magnetic field gradients that are inherently generated in the laser-generated plasmas, or of pre-polarized target particles which maintain their p olarization during the rapid acceleration procedure. We have developed a method to measure the degree of polarization of protons that have been accelerated at the 200 TW laser facility ARCturus at Duesseldorf University. As a next step, measurements with unpolarized H(2) (for proton acceleration) and (3)He gas (for (3)He ions) are planned and, finally, pre-polarized (3)He will be used.