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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 10: New Accelerator Concepts and Radiofrequency

AKBP 10.3: Vortrag

Donnerstag, 22. März 2018, 17:00–17:15, NW-Bau - HS2

RF Control Stability Investigations during the first Energy Recovery Operation at the S-DALINAC* — •Manuel Steinhorst, Michaela Arnold, Christoph Burandt, and Norbert Pietralla — Institut für Kernphysik - TU Darmstadt, Darmstadt, Deutschland

The recirculating superconducting Darmstadt linear accelerator S-DALINAC is one of the main research instruments at the institute for nuclear physics at the TU Darmstadt. Since the first recirculated beam in 1991 many improvements on the S-DALINAC were implemented. In 2015/2016 the S-DALINAC was upgraded from a twice recirculating to a thrice recirculating scheme. With the new beam line the S-DALINAC is able to provide a beam with the same design energy of up to 130 MeV in cw operation at reduced accelerating gradients by using the main accelerator an additional time. Furthermore a phaseshift of up to 360^∘ due to a path length variation of the arcs in the second recirculation can be done. Therefore the S-DALINAC can be operated in energy recovery mode after this upgrade shifting the phase by 180^∘. In August 2017 a first once recirculating energy recovery operation was achieved using the second recirculation. During this energy recovery beamtime measurements regarding the rf control stability and rf power were done. This talk is discussing this measurements and possible improvements for future energy recovery beam times.

Supported by the DFG through GRK 2128.