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Recent progress on key physics issues in the design of indirect-drive targets for heavy ion fusion is reviewed. The critical dependence of the gain predictions on such issues as symmetry, stability, and radiation generation is illustrated by means of a model for the target gain. Design constraints set by the Rayleigh-Taylor instability are discussed. Beam-to-capsule energy coupling in hohlraums with few converters is considered, with emphasis on radiation generation and symmetrisation. Results are also given on an alternate, spherically symmetric indirect-drive target, with a diffuse converter. The conditions for effective radiation drive and hydrodynamic insulation are discussed.

Additional information

Authors: ENEA, ENEA, Centro Ricerche Energia Frascati, Roma (IT)
Bibliographic Reference: Report: ENEA RT/ERG/FUS/93/32 EN (1993) 87 pp.
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P. 65-00044 Frascati, Roma (IT)
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