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Dresden 2014 – scientific programme

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BE: Beschleunigerphysik

BE 1: Hadron Accelerators and Colliders

BE 1.3: Talk

Monday, March 31, 2014, 15:45–16:00, MOL 213

A RF-E-B-Dipole for Spin Manipulation at COSY — •Sebastian Mey1, Ronald Brings1, Ralf Gebel1, Andreas Lehrach2, Rudolf Maier1, Frank Rathmann1, and Jörg Pretz21Institut für Kernphysik, Forschungszentrum Jülich GmbH, Deutschland — 2III. Physikalisches Institut B, RWTH Aachen, Deutschland

The JEDI Collaboration investigates the feasibility of EDM (Electric Dipole Moment) experiments with charged hadrons in storage rings. These incorporate measurements with horizontally polarized particles. To maximize the lifetime of the horizontal polarization, systematic studies of unwanted spin rotations utilizing a vertical RF-B field are required. To avoid simultaneously kicking the beam in the horizontal plane, the resulting Lorentz force needs to be compensated by the force of an orthogonal electric field, leading to a Wien-Filter configuration. For preliminary studies, the Cooler Synchrotron COSY is currently being supplemented with a new RF-E-B-Dipole.

The talk will incorporate the setup of the new system from the RF-Supply to the electrode and coil configuration providing the electromagnetic fields, as well as the commissioning and first measurements taken at COSY.

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