000835923 001__ 835923
000835923 005__ 20210129230834.0
000835923 037__ $$aFZJ-2017-05055
000835923 041__ $$aEnglish
000835923 1001_ $$0P:(DE-Juel1)165907$$aHempelmann, Nils$$b0$$eCorresponding author$$ufzj
000835923 1112_ $$aDPG Frühjahrstagung Hadronen und Kerne$$cDresden$$d2017-03-19 - 2017-03-24$$wGermany
000835923 245__ $$aAn Active Spin Tune Feedback System for the Cooler Synchrotron (COSY)
000835923 260__ $$c2017
000835923 3367_ $$033$$2EndNote$$aConference Paper
000835923 3367_ $$2DataCite$$aOther
000835923 3367_ $$2BibTeX$$aINPROCEEDINGS
000835923 3367_ $$2DRIVER$$aconferenceObject
000835923 3367_ $$2ORCID$$aLECTURE_SPEECH
000835923 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1502373815_22529$$xOther
000835923 502__ $$cRWTH Aachen
000835923 520__ $$aThe Jülich Electric Dipole Moment Investigation (JEDI) Collaboration works on a measurement of the electric dipole moment (EDM) of charged hadrons using a storage ring. Such a dipole moment would violate CP symmetry, providing a test for physics beyond the Standard  Model. To measure the EDM in a magnetic storage ring, the precession of the spin in the ring has to be kept in phase with an RF Wien Filter that manipulates the spin. In fall 2015 an active feedback system that meets this requirement was successfully tested at COSY. The system works by adjusting the accelerator frequency, which changes the beam velocity and therefore the rate of spin precession. Data from the polarimeter EDDA are analyzed over a period of about one second to determine the relative phase between the spin precession and  the external frequency, which is used to calculate the necessary correction. In absence of a Wien filter an RF solenoid coil was used as a spin manipluator in the tests. The test of the feedback system proofs that the method is suitable for a proof of principle experiment for EDM measurements at COSY.
000835923 536__ $$0G:(DE-HGF)POF3-612$$a612 - Cosmic Matter in the Laboratory (POF3-612)$$cPOF3-612$$fPOF III$$x0
000835923 536__ $$0G:(DE-HGF)POF3-631$$a631 - Accelerator R & D (POF3-631)$$cPOF3-631$$fPOF III$$x1
000835923 536__ $$0G:(EU-Grant)694340$$asrEDM - Search for electric dipole moments using storage rings (694340)$$c694340$$fERC-2015-AdG$$x2
000835923 693__ $$0EXP:(DE-Juel1)JEDI-20170712$$5EXP:(DE-Juel1)JEDI-20170712$$eJülich Electric Dipole moment Investigations$$x0
000835923 8564_ $$uhttp://dresden17.dpg-tagungen.de/
000835923 909CO $$ooai:juser.fz-juelich.de:835923$$pec_fundedresources$$pVDB$$popenaire
000835923 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)165907$$aForschungszentrum Jülich$$b0$$kFZJ
000835923 9131_ $$0G:(DE-HGF)POF3-612$$1G:(DE-HGF)POF3-610$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Universum$$vCosmic Matter in the Laboratory$$x0
000835923 9131_ $$0G:(DE-HGF)POF3-631$$1G:(DE-HGF)POF3-630$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Technologie$$vAccelerator R & D$$x1
000835923 9141_ $$y2017
000835923 920__ $$lyes
000835923 9201_ $$0I:(DE-Juel1)IKP-2-20111104$$kIKP-2$$lExperimentelle Hadrondynamik$$x0
000835923 980__ $$aconf
000835923 980__ $$aVDB
000835923 980__ $$aI:(DE-Juel1)IKP-2-20111104
000835923 980__ $$aUNRESTRICTED