Wuppertal 2015 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 10: Beam and Accelerator Control
AKBP 10.8: Vortrag
Mittwoch, 11. März 2015, 18:30–18:45, BZ.08.06 (HS 1)
Compensation of Steerer Crosstalk between FLASH1 and FLASH2 — •Florian Müller1, Mathias Vogt2, and Johann Zemella2 — 1Universität Hamburg, Hamburg, Germany — 2DESY, Hamburg, Germany
At the Free-Electron Laser in Hamburg (FLASH) a new beamline has been commissioned. The two beamlines are now driven by the same electron source and use the same accelerator modules. A septum has been installed downstream of the accelerator modules to kick the electron bunches used for FLASH2 into the new beam line, while the bunches for FLASH1 remain undisturbed.
In the extraction area of FLASH2, there are multiple steering coils used to deflect the beam. Unfortunately, the steering coils for each beam line are close to the other and leakage fields introduce an unwanted additional kick to the electrons, which can destroy the lasing of either FLASH1 or FLASH2.
This talk presents measurements and methods of compensating this steerer crosstalk.