München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 7: Hadron Accelerators and Colliders

AKBP 7.2: Talk

Tuesday, March 19, 2019, 14:15–14:30, HS 7

Electron Cooling Experiments with 2.4 GeV/c proton beam at COSY — •Philipp Niedermayer, Vsevolod Kamerdzhiev, Arthur Halama, Christian Böhme, Ilja Bekman, Karl Reimers, Nikolay Shurkhno, and Rolf Stassen — IKP-4, Forschungszentrum Jülich, 52428 Jülich

Experimental results from the recent cooling beam time are presented. Studies of transverse and longitudinal magnetized electron cooling were carried out. Thereby the e-cooling was accompanied by stochastic cooling, barrier bucket and operation of an internal cluster jet target. To further investigate the cooling process, shifts in the electron orbit were performed while monitoring the momentum of the cooled proton beam. From the measurements the effective energy distribution within the electron beam was deduced. Comparing the results to theoretical predictions yields better understanding of the cooling dynamics in order to further improve the cooling process. By combining electron and stochastic cooling, best results in terms of cooling speed and equilibrium emittance were achieved.