TY  - CONF
AU  - Niedermayer, Philipp
AU  - Böhme, Christian
AU  - Breitkreutz, Bernd
AU  - Kamerdzhiev, Vsevolod
AU  - Lehrach, Andreas
TI  - Development of a Fast Betatron Tune and Chromaticity Measurement System for COSY
M1  - FZJ-2021-04236
SP  - 3 pages1.030 MB
PY  - 2021
AB  - A fast tune measurement is developed for the Cooler Synchrotron COSY at the Institut für Kernphysik of Forschungszentrum Jülich. Betatron oscillations of the beam are excited with a band-limited RF signal via a stripline kicker. Resonant transverse oscillations are then observed using capacitive beam position monitors. Based on the bunch-by-bunch beam position data the betatron tune is determined. The usage of bunch-by-bunch data is characteristic of the new system. It allows for a discrete tune measurement within a few milliseconds, as well as continuous tune monitoring during beam acceleration. The high precision tune measurement also enables determination of the beam chromaticity. Therefore, the beam momentum is varied by means of the RF frequency and the subsequent tune change is determined. For routine use during beam operation and experiments, the developed method is integrated into the control system.
T2  - IPAC 2021
CY  - 24 May 2021 - 28 May 2021, Campinas (Brazil)
Y2  - 24 May 2021 - 28 May 2021
M2  - Campinas, Brazil
KW  - Accelerator Physics (Other)
KW  - MC6: Beam Instrumentation, Controls, Feedback and Operational Aspects (Other)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.18429/JACOW-IPAC2021-MOPAB319
UR  - https://juser.fz-juelich.de/record/902404
ER  -