Title :
Coupled bunch dipole mode measurements of accelerating beam in the Fermilab Booster
Author :
McGinnis, D. ; Marriner, J. ; Bharadwaj, V.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
The dipole oscillation of a coupled bunch mode was measured using a fast single shot digitizing oscilloscope. The phase centroid of the bunches was determined from the digitized waveform. The phase error of the bunches as a function of bunch number was then Fourier analyzed, which provides the coupled bunch mode spectrum. The resulting spectrum was used to determine the evolution of coupled bunch mode instabilities in the Fermilab Booster. This method can determine the coupled bunch mode spectrum in a single turn in contrast to frequency domain methods which take at least a full synchronous period to complete the measurement.<>
Keywords :
particle beam diagnostics; proton accelerators; synchrotrons; Fermilab Booster; coupled bunch mode; coupled bunch mode spectrum; dipole oscillation; fast single shot digitizing oscilloscope; frequency domain methods; instabilities; particle beam diagnostics; phase error; Acceleration; Coupled mode analysis; Coupling circuits; Optical coupling; Particle beams; Protons; Radio frequency; Signal resolution; Spectral analysis; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164598
