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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 2: PWA / TNSA I

AKBP 2.1: Vortrag

Montag, 9. März 2015, 14:00–14:15, BZ.08.04 (HS 2)

Beam Optics for Laser Wake Field Accelerators — •Paul Winkler1,2, Winfried Decking3, Bernward Krause3, Klaus Floettmann3, and Andreas R. Maier1,21CFEL, Center for Free-Electron Laser Science, 22607 Hamburg — 2University of Hamburg, Institute of Experimental Physics, 22761 Hamburg — 3DESY, 22607 Hamburg

Laser wake field accelerators (LWFAs) offer a new technology to produce highly relativistic electron beams on a very compact scale. Nevertheless, beam qualities of today’s LWFAs are not sufficient for applications. In particular, due to high energy spread and beam divergence, the emittance is not a conserved quantity.

The University of Hamburg, in close collaboration with DESY, is currently commissioning a dedicated beamline for laser wake field acceleration. The so called LUX experiment aims to achieve particle energies of about 400 MeV with 1 % energy spread and 1 mrad beam divergence. A compact quadrupole doublet is required in order to focus the beam, thereby reduce emittance growth, and then transport the beam through a miniature undulator.

In the talk, the design and construction of an electromagnetic quadrupole doublet is presented. With simple modifications the gradients of existing quadrupoles were increased by 50 % up to 150 T/m.

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DPG-Physik > DPG-Verhandlungen > 2015 > Wuppertal