Wuppertal 2015 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 5: Poster
AKBP 5.11: Poster
Dienstag, 10. März 2015, 11:00–19:00, Foyer Ebene G.10
A Superconducting Transverse Gradient Undulator for a Laser Wakefield Accelerator: First Tests and Magnetic Field Measurements — Veronica Afonso Rodriguez1, •Axel Bernhard1, Andreas Grau1, Peter Peiffer1, Steffen Schott1, Walter Werner1, Christina Widmann1, Andreas Will1, Anke-Susanne Müller1, Marc Weber1, Maria Nicolai2, Alexander Sävert2, and Malte Kaluza2,3 — 1Karlsruhe Institute of Technology (KIT), Germany — 2Friedrich-Schiller University Jena, Germany — 3Helmholtz-Institute Jena, Germany
A superconducting transverse gradient undulator (TGU) for the laser wakefield accelerator (LWFA) in Jena, Germany, has been designed and constructed. The transverse magnetic flux density gradient is achieved through a cylindric shape of the undulator halves. The 40-period undulator is designed for a relative energy acceptance of ± 10% around a given central energy, covering both the width and the shot to shot fluctuations of the electron energy spectrum generated by the LWFA at a moderate dispersion of ∼ 20 mm.
In this contribution we present details of the technical design and construction of the device and show results of the performed quench tests and field mappings.