Influence of electromagnetic effects on stability properties of a high-current betatron accelerator

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6118646

Uhm, H S; Davidson, R C

Stability properties of an intense relativisitic electron ring in a betatron are investigated for eigenfrequency ..omega.. near harmonics of the relativistic cyclotron frequency in the applied betatron field, including the important influence of electromagnetic effects. A closed algebraic dispersion relation is obtained for the longitudinal instability, assuming that the electron ring is located inside a perfectly conducting shell which has a large-aspect-ratio. In a parameter regime corresponding to the conventional negative-mass instability, it is found that electromagnetic effects can lead to complete stabilization of the instability provided the beam current is above some critical value.

• Research Organization: Naval Surface Weapons Center, Silver Spring MD
• OSTI ID: 6118646
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
BEAM CURRENTS
BETATRONS
CURRENTS
CYCLIC ACCELERATORS
CYCLOTRON FREQUENCY
EIGENFREQUENCY
ELECTROMAGNETIC RADIATION
HYPOTHESIS
MASS
NEGATIVE MASS
RADIATIONS
STABILITY