TO THE OBSERVED SYNCHROTRON MODULATION OF EXCITED BETATRON OSCILLATIONS IN THE CPS

Technical Report · Fri Sep 01 04:00:00 EDT 1961

OSTI ID:4831237

Geiger, M

Beam betatron oscillations in a synchrotron are discussed. At small amplitudes conditions are realized where these oscillations, once excited, do not decay for reasons of dispenrsion duen to the enxisting energy spread but rather persist. The characteristic feature is that then beam oscillations appear modulated in amplitude and that the periodicity of the modulation is given by the synchrotron oscillation frequcncy. This effect was produced with the CPS on several occasions and is explained and calculated as a mechanism based on two things the particle confining bunch structure of the beam, and the phase slip of the particle oscillations due to the Q-spread associated with the energy spread present. From then theory and the observed beam pick-up signal conclusions were drawn as to the bunch shape, the particle distribution, and the Q-spread, As a consequence, the synehrotron oscillation frequency may be checked during operation of the CPS, by using the r.f. knock-out device. (auth)

• Research Organization: European Organization for Nuclear Research, Geneva
• NSA Number: NSA-16-003752
• OSTI ID: 4831237
• Report Number(s): CERN-61-24
• Country of Publication: Switzerland
• Language: English

Related Subjects

BEAMS
BETATRONS
BUNCHING
CERN
CIRCUITS
CONFIGURATION
DISTRIBUTION
ENERGY
EXCITATION
FREQUENCY
LOSSES
MEASURED VALUES
MODULATION
NUMERICALS
OSCILLATIONS
PHYSICS
PROTON BEAMS
RADIO WAVES
SYNCHROTRONS
VELOCITY