Effects of space charge in beams for heavy ion fusion
A new analytic model is presented that accurately estimates the radially averaged axial component of the space-charge field of an axisymmetric heavy-ion beam in a cylindrical beam pipe. The model recovers details of the field near the beam ends that are overlooked by simpler models, and the results compare well to exact solutions of Poisson`s equation. Field values are shown for several simple beam profiles and are compared with values obtained from simpler models. The model has been implemented in the fluid/envelope code CIRCE and used to study longitudinal confinement in beams with a variety of axial profiles. The effects of errors in the longitudinal-control fields are presented.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 113983
- Report Number(s):
- UCRL-JC-121281; CONF-9509149-2; ON: DE96000753; TRN: 95:023198
- Resource Relation:
- Conference: International symposium on heavy ion inertial fusion, Princeton, NJ (United States), 6-9 Sep 1995; Other Information: PBD: 1 Sep 1995
- Country of Publication:
- United States
- Language:
- English
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