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Review of heavy-ion inertial fusion physics

Matter and Radiation at Extremes 2016年第2期1卷 89-113页

作者： S.Kawata T.Karino A.I.Ogoyski Graduate School of Engineering Utsunomiya UniversityYohtoh 7-1-2Utsunomiya321-8585Japan CORE(Center for Optical Research and Education) Utsunomiya UniversityYohtoh 7-1-2Utsunomiya321-8585Japan Department of Physics Technical University of VarnaUlitskaStudentska 1VarnaBulgaria

In this review paper on heavy ion inertial fusion(HIF),the state-of-the-art scientific results are presented and discussed on the HIF physics,including physics of the heavy ion beam(HIB)transport in a fusion reactor,the HIBs-ion illumination on a direct-drive fuel target,the fuel target physics,the uniformity of the HIF target implosion,the smoothing mechanisms of the target implosion non-uniformity and the robust target *** HIB has remarkable preferable features to release the fusion energy in inertial fusion:in particle accelerators HIBs are generated with a high driver efficiency of~30%-40%,and the HIB ions deposit their energy inside of ***,a requirement for the fusion target energy gain is relatively low,that would be~50-70 to operate a HIF fusion reactor with the standard energy output of 1 GWof *** HIF reactor operation frequency would be~10-15 Hz or ***-MJ HIBs illuminate a fusion fuel target,and the fuel target is imploded to about a thousand times of the solid *** the DT fuel is ignited and *** HIB ion deposition range is defined by the HIB ions stopping length,which would be~1 mm or so depending on the ***,a relatively large density-scale length appears in the fuel target *** of the critical issues in inertial fusion would be a spherically uniform target compression,which would be degraded by a non-uniform *** implosion non-uniformity would be introduced by the Rayleigh-Taylor(R-T)instability,and the large densitygradient-scale length helps to reduce the R-T growth *** the other hand,the large scale length of the HIB ions stopping range suggests that the temperature at the energy deposition layer in a HIF target does not reach a very-high temperature:normally about 300 eV or so is realized in the energy absorption region,and that a direct-drive target would be appropriate in *** addition,the HIB accelerators are operated repetitively and *** precis

关键词： heavy ion inertial fusion heavy ion fusion reactor system fusion fuel target implosion Implosion dynamics heavy ion beam transport Rayleigh-Taylor instability stabilization Robust fusion system

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