EBQ code: transport of space-charge beams in axially symmetric devices

Technical Report · Mon Nov 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/6345300· OSTI ID:6345300

Paul, A C

Such general-purpose space charge codes as EGUN, BATES, WOLF, and TRANSPORT do not gracefully accommodate the simulation of relativistic space-charged beams propagating a long distance in axially symmetric devices where a high degree of cancellation has occurred between the self-magnetic and self-electric forces of the beam. The EBQ code was written specifically to follow high current beam particles where space charge is important in long distance flight in axially symmetric machines possessing external electric and magnetic field. EBQ simultaneously tracks all trajectories so as to allow procedures for charge deposition based on inter-ray separations. The orbits are treated in Cartesian geometry (position and momentum) with z as the independent variable. Poisson's equation is solved in cylindrical geometry on an orthogonal rectangular mesh. EBQ can also handle problems involving multiple ion species where the space charge from each must be included. Such problems arise in the design of ion sources where different charge and mass states are present.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6345300
• Report Number(s): LBL-13241; ON: DE83011629
• Resource Relation: Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM DYNAMICS
COMPUTERIZED SIMULATION
BEAM TRANSPORT
COMPUTER CODES
E CODES
AXIAL SYMMETRY
BEAM OPTICS
ELECTROMAGNETIC FIELDS
EQUATIONS OF MOTION
LINEAR ACCELERATORS
MESH GENERATION
PHASE STABILITY
SPACE CHARGE
ACCELERATORS
DIFFERENTIAL EQUATIONS
EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
SIMULATION
STABILITY
SYMMETRY
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics