Recent Livermore research on ion beam fusion targets
Targets using indirect drive optimize symmetry and are the mainline approach at LLNL based on a number of favorable factors. Recently we have also investigated several examples of ion beam targets that use the energy efficiency of direct drive while at the same time optimizing on the symmetry requirements. Heavy ion beams of charge state Z greater than or equal to 3 at 5-10 GeV have less than or equal to15-20 m bending radii with 3.5 Tesla fields. Beams like them could be used with targets involving direct drive. Control of asymmetries in direct-drive ion beam targets depends on control of the effects of residual target asymmetries after an appropriate illumination scheme has been adopted. In this article, we outline results on our investigations into ion beam target concepts in which the effects of residual asymmetries are ameliorated. Thirty-two beams are placed according to our axially symmetric Gaussian-quadrature illumination scheme. The targets survive the effects of residual asymmetries in our recent 2D hydrodynamic simulations. 7 refs., 5 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6716970
- Report Number(s):
- UCRL-99256; CONF-880713-19; ON: DE89001494
- Resource Relation:
- Conference: Beams '88: 7th international conference on high-power particle beams, Karlsruhe, F.R. Germany, 4 Jul 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Symmetry issues in a class of ion beam targets using sufficiently short direct drive pulses
Symmetry issues in a class of ion beam targets using short direct drive pulses
Related Subjects
ION BEAM TARGETS
RESEARCH PROGRAMS
EFFICIENCY
HEAVY ION FUSION REACTIONS
HYDRODYNAMIC MODEL
INERTIAL CONFINEMENT
ION TEMPERATURE
OPTIMIZATION
CONFINEMENT
MATHEMATICAL MODELS
NUCLEAR REACTIONS
PARTICLE MODELS
PLASMA CONFINEMENT
STATISTICAL MODELS
TARGETS
THERMODYNAMIC MODEL
700208* - Fusion Power Plant Technology- Inertial Confinement Technology