Mysterious dipole synchrotron oscillations during and after adiabatic capture

Ng, K.Y. ; /Fermilab

关键词: DIPOLES;    SYNCHROTRON OSCILLATIONS;    FERMILAB Accelerators;   

DOI  :  10.2172/1038934
RP-ID  :  FERMILAB-TM-2530-APC
PID  :  OSTI ID: 1038934
Others  :  TRN: US1202123

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Strong synchrotron oscillations were observed during and after the 2.5-MHz rf adiabatic capture of a debunched booster batch in the Main Injector. Analysis shows two possible sources for the synchrotron oscillations. One is the frequency drift of the 2.5-MHz rf after the turning off of the 53-MHz rf voltage, thus resulting in an energy mismatch with the debunched beam. The second source is the energy mismatch of the injected booster beam with the frequency of the 53-MHz rf. We have been able to rule out the first possibility.