Title |
Compact-Two-Octave-Spanning Perpendicular Kicker of MeV Electrons Based on a Cubic Magnet Dipole Array |
Authors |
- T. Rohwer, R. Bazrafshan, F.X. Kärtner, N.H. Matlis
Deutsches Elektronen Synchrotron (DESY) and Center for Free Electron Science (CFEL), Hamburg, Germany
- R. Bazrafshan
University of Hamburg, Hamburg, Germany
- F.X. Kärtner
The Hamburg Center for Ultrafast Imaging, University of Hamburg, Hamburg, Germany
- F.X. Kärtner
CFEL, Hamburg, Germany
- P. Vagin
DESY, Hamburg, Germany
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Abstract |
New compact particle acceleration structures, including but not limited to plasma, THz and direct laser driven accelerators, have in common that they cover a wide energy range of potential final energies and often show a large energy spread. Moreover, they may initially have a rather large emittance. To analyze the energy range of a single shot and/or to deflect the beam to safely dump the electrons away from an end-station requires an electron kicker covering a large energy range. Here, we present a magnetic dipole structure based on a 2D Halbach array. For the current experimental test accelerator in AXSIS, an electron beam in the energy range from 4 to 20 MeV is deflected by 90 degree and energetically dispersed. In direct contrast to a simple magnetic dipole, an array of cubic magnet blocks with tailored magnetization directions allows a focusing of the beam for both longitudinal and transverse directions at 90 degree bend. A generic algorithm optimizes the magnetic field array to the predefined deflection angle and divergence. The modular array structure, in combination with the algorithm enables a simple exchange of magnets to adapt for different beam parameters.
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Funding |
This work has been supported by the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) through the Synergy Grant AXSIS (609920). |
Paper |
download MOPOMS032.PDF [1.718 MB / 3 pages] |
Cite |
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Conference |
IPAC2022 |
Series |
International Particle Accelerator Conference (13th) |
Location |
Bangkok, Thailand |
Date |
12-17 June 2022 |
Publisher |
JACoW Publishing, Geneva, Switzerland |
Editorial Board |
Frank Zimmermann (CERN, Meyrin, Switzerland); Hitoshi Tanaka (RIKEN, Hyogo, Japan); Porntip Sudmuang (SRLI, Nakhon, Thailand); Prapong Klysubun (SRLI, Nakhon, Thailand); Prapaiwan Sunwong (SRLI, Nakhon, Thailand); Thakonwat Chanwattana (SRLI, Nakhon, Thailand); Christine Petit-Jean-Genaz (CERN, Meyrin, Switzerland); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
Online ISBN |
978-3-95450-227-1 |
Online ISSN |
2673-5490 |
Received |
08 June 2022 |
Revised |
11 June 2022 |
Accepted |
12 June 2022 |
Issue Date |
14 June 2022 |
DOI |
doi:10.18429/JACoW-IPAC2022-MOPOMS032 |
Pages |
706-708 |
Copyright |
Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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