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@INPROCEEDINGS{Nass:858237,
author = {Nass, Alexander},
title = {{C}ommissioning of the {RF} {W}ien filter for a first
deuteron {EDM} measurement at {COSY} / {J}ülich},
reportid = {FZJ-2018-07137},
year = {2018},
abstract = {The JEDI Collaboration (Jülich Electric Dipole
Investigations) aims for a measurement of the electric
dipole moments (EDMs) of Deuterons and Protons at the COoler
SYnchrotron (COSY). To make this possible, a novel high
precision waveguide RF Wien filter was installed in COSY
inside a so-called low-beta section, to modulate the spin of
deuterons and protons. With this device the force of the
radial electric field iscanceled by the corresponding
vertical magnetic force. So it is possible to directly
manipulate the polarization vector of the particles without
introducing any beam oscillations. The RF Wien filter has
been designed tooperate at harmonics of the spin precession
frequency ranging from 0.6 to 1.7 MHz. For systematic
investigations of sources of false EDM signals, the
waveguide RF Wien filter can be rotated by 90 degrees around
the beamaxis. The results of several weeks of commissioning
experiments at COSY with the RF Wien filter, including
Lorentz force measurements, driven oscillations and the
resonant build-up of vertical polarization will be
presented. A series of test measurements similar to the the
upcoming first Deuteron EDM measurement were performed as
well.},
month = {Sep},
date = {2018-09-10},
organization = {23rd International Spin Symposium,
Ferrara (Italy), 10 Sep 2018 - 14 Sep
2018},
subtyp = {Plenary/Keynote},
cin = {IKP-2},
cid = {I:(DE-Juel1)IKP-2-20111104},
pnm = {612 - Cosmic Matter in the Laboratory (POF3-612) / 631 -
Accelerator R $\&$ D (POF3-631) / srEDM - Search for
electric dipole moments using storage rings (694340)},
pid = {G:(DE-HGF)POF3-612 / G:(DE-HGF)POF3-631 /
G:(EU-Grant)694340},
experiment = {EXP:(DE-Juel1)JEDI-20170712},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/858237},
}