Longitudinal and transverse coupling in accelerator beam plasmas

Conference · Wed Jul 01 04:00:00 EDT 1981

OSTI ID:5296178

Krafft, G; Mark, J W.K.; Smith, L; Wang, T F

Based on a warm beam model, a full 3-D electrostatic linearized stability analysis is carried out within the context of Vlasov-Maxwell equations. The coupling of longitudinal and transverse motions is included as well as arbitrary wall impedance. Numerical results show that the warm beam is rather stable for zero wall impedance. A known artifact of the model introduces the only non-resistive instability due to two rotating streams. This type of instability stabilizes when rotation frequency vanishes. For general wall impedance, Landau damping quenches instabilities provided there is sufficient longitudinal energy spread.

• Research Organization: Lawrence Livermore National Lab., CA (USA); Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5296178
• Report Number(s): UCRL-88925; CONF-810620-23; ON: DE84007786
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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ACCELERATORS
BOLTZMANN-VLASOV EQUATION
CONFINEMENT
COUPLING
DAMPING
DIFFERENTIAL EQUATIONS
ENERGY TRANSFER
EQUATIONS
HEAVY ION ACCELERATORS
IMPEDANCE
INERTIAL CONFINEMENT
ION BEAM TARGETS
LANDAU DAMPING
LINEAR ACCELERATORS
MAXWELL EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA CONFINEMENT
TARGETS
THREE-DIMENSIONAL CALCULATIONS