Equilibrium of a high-current electron ring in a modified-betatron accelerator

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864300· OSTI ID:6090027

Kapetanakos, C A; Sprangle, P; Chernin, D P; Marsh, S J; Haber, I

The dynamics of an ultrahigh-current electron ring in a modified-betatron configuration is addressed. This study includes analytical and numerical results for both ''cold'' and ''hot'' rings. It has been found that the walls surrounding the ring and toroidal effects play a very important role in the dynamics of the ring, even when the wall conductivity is infinite. For finite wall conductivity, the diffusion of the ring's self-magnetic field profoundly impacts its dynamics and in general the equilibrium could be lost if means are not provided to compensate for this effect. In addition, it has been found that the toroidal-field grad B drift is not important, except when the bounce frequency is very small. The general conclusion of these studies is that equilibrium states of ultrahigh-current rings in modified-betatron configuration exist over a wide range of parameters. These states are accessible and within the reach of existing pulsed power technology.

• Research Organization: Naval Research Laboratory, Washington, DC 20375
• OSTI ID: 6090027
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:6; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
ANALYTICAL SOLUTION
BETATRONS
CYCLIC ACCELERATORS
DYNAMICS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON RINGS
EQUILIBRIUM
MECHANICS
MODIFICATIONS
PHYSICAL PROPERTIES
WALLS