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Symmetry and stability issues in target design for heavy ion fusion

Technical Report:

Abstract

Results on several topics concerning the symmetry and the stability of the implosion of heavy ion fusion inertial confinement fusion (ICF) targets are reported. By means of 2-D radiation-hydrodynamics simulations, it is shown that some direct-drive targets are subjected, during acceleration, to rather violent Rayleigh-Taylor instabilities. Radiation generation, confinement and symmetrization in some hohlraum targets for indirect-drive ICF, including cylindrical radiation converters is studied by 2-D and 3-D codes. It appears that at least six converters are needed to provide adequate radiation symmetrization and efficient radiation coupling to the fusion capsule. A new concept of radiation driven targets, including a spherically symmetric converter is presented. In the final section, some results are given on high resolution 2-D studies of the turbolent mixing induced by the Rayleigh-Taylor instability.
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
ETDE-IT-93-29; CONF-9209290-2
Reference Number:
SCA: 700411; PA: ITAN-93:000075; SN: 93000925456
Resource Relation:
Conference: 14. international conference on plasma physics and controlled nuclear fusion research,Wurzburg (Germany),30 Sep - 7 Oct 1992; Other Information: PBD: 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ION BEAM TARGETS; SYMMETRY; RAYLEIGH-TAYLOR INSTABILITY; DESIGN; HEAVY ION FUSION REACTIONS; HEAVY ION ACCELERATORS; IMPLOSIONS; EXPERIMENTAL DATA; TWO-DIMENSIONAL CALCULATIONS; TURBULENCE; 700411; INERTIAL CONFINEMENT DEVICES
OSTI ID:
10118494
Research Organizations:
ENEA, Frascati (Italy). Centro Ricerche Energia; Istituto Nazionale di Fisica Nucleare, Legnaro (Italy)
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE93758942; TRN: 93:000075
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
ITAN
Size:
7 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Atzeni, S, Guerrieri, A, Piriz, A R, and Temporal, M. Symmetry and stability issues in target design for heavy ion fusion. Italy: N. p., 1992. Web.
Atzeni, S, Guerrieri, A, Piriz, A R, & Temporal, M. Symmetry and stability issues in target design for heavy ion fusion. Italy.
Atzeni, S, Guerrieri, A, Piriz, A R, and Temporal, M. 1992. "Symmetry and stability issues in target design for heavy ion fusion." Italy.
@misc{etde_10118494,
title = {Symmetry and stability issues in target design for heavy ion fusion}
author = {Atzeni, S, Guerrieri, A, Piriz, A R, and Temporal, M}
abstractNote = {Results on several topics concerning the symmetry and the stability of the implosion of heavy ion fusion inertial confinement fusion (ICF) targets are reported. By means of 2-D radiation-hydrodynamics simulations, it is shown that some direct-drive targets are subjected, during acceleration, to rather violent Rayleigh-Taylor instabilities. Radiation generation, confinement and symmetrization in some hohlraum targets for indirect-drive ICF, including cylindrical radiation converters is studied by 2-D and 3-D codes. It appears that at least six converters are needed to provide adequate radiation symmetrization and efficient radiation coupling to the fusion capsule. A new concept of radiation driven targets, including a spherically symmetric converter is presented. In the final section, some results are given on high resolution 2-D studies of the turbolent mixing induced by the Rayleigh-Taylor instability.}
place = {Italy}
year = {1992}
month = {Dec}
}