This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevAccelBeams.23.064401 in citations.
Please use the identifier: http://hdl.handle.net/2128/26303 in citations.
Scaling laws for the depolarization time of relativistic particle beams in strong fields
Scaling laws for the depolarization time of relativistic particle beams in strong fields
The acceleration of polarized electrons and protons in strong laser and plasma fields is a very attractive option to obtain polarized beams in the GeV range. We investigate the feasibility of particle acceleration in strong fields without destroying an initial polarization, taking into account all r...
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Personal Name(s): | Thomas, Johannes (Corresponding author) |
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Hützen, Anna / Lehrach, Andreas / Pukhov, Alexander / Ji, Liangliang / Wu, Yitong / Geng, Xuesong / Büscher, Markus | |
Contributing Institute: |
Elektronische Eigenschaften; PGI-6 Kernphysikalische Großgeräte; IKP-4 |
Published in: | Physical Review Accelerators and Beams Physical review accelerators and beams, 23 23 (2020 2020) 6 6, S. 064401 064401 |
Imprint: |
College Park, MD
American Physical Society
2020
2020-06-01 2020-06-01 |
DOI: |
10.1103/PhysRevAccelBeams.23.064401 |
Document Type: |
Journal Article |
Research Program: |
Accelerator R & D Controlling Spin-Based Phenomena |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26303 in citations.
The acceleration of polarized electrons and protons in strong laser and plasma fields is a very attractive option to obtain polarized beams in the GeV range. We investigate the feasibility of particle acceleration in strong fields without destroying an initial polarization, taking into account all relevant mechanisms that could cause polarization losses, i.e. the spin precession described by the T-BMT equation, the Sokolov-Ternov effect and the Stern-Gerlach force. Scaling laws for the (de-)polarization time caused by these effects reveal that the dominant polarization limiting effect is the rotation of the single particle spins around the local electromagnetic fields. We compare our findings to test-particle simulations for high energetic electrons moving in a homogeneous electric field. For high particle energies the observed depolarization times are in good agreement with the analytically estimated ones. |