Hostname: page-component-76fb5796d-r6qrq Total loading time: 0 Render date: 2024-04-30T05:29:37.997Z Has data issue: false hasContentIssue false
  • English
  • Français

Target implosion uniformity in heavy-ion fusion

Published online by Cambridge University Press:  28 November 2016

T. Karino ,
S. Kawata ,
S. Kondo ,
T. Iinuma ,
T. Kubo ,
H. Kato  and
A. I. Ogoyski
T. Karino*
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
S. Kawata
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
S. Kondo
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
T. Iinuma
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
T. Kubo
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
H. Kato
Affiliation:
Utsunomiya University, Utsunomiya, Graduate school of engineering, Tochigi 321-8585, Japan
A. I. Ogoyski
Affiliation:
Varna Technical University, Department of Physics, Varna 9010, Bulgaria
*
Address correspondence and reprint requests to: T. Karino, Utsunomiya University, Utsunomiya, Tochigi 321-8585, Japan. E-mail: dt167105@cc.utsunomiya-u.ac.jp
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, the robustness of the dynamic instability mitigation mechanism is first examined, and then the instability mitigation phenomenon is demonstrated in a deuterium–tritium (DT) fuel target implosion by wobbling heavy-ion beams (HIBs). The results presented here show that the mechanism of the dynamic instability mitigation is rather robust against changes in the phase, the amplitude and the wavelength of the wobbling perturbation applied. In general instability would emerge from the perturbation of the physical quantity. Normally the perturbation phase is unknown, so that the instability growth rate is discussed. However, if the perturbation phase is known, the instability growth can be controlled by a superposition of perturbations imposed actively: if the perturbation is induced by, for example, a driving beam axis oscillation or wobbling, the perturbation phase could be controlled and the instability growth is mitigated by the superposition of the growing perturbations. In this paper, we realize the superposition of the perturbation by the wobbling HIBs’ illumination onto a DT fuel target in heavy-ion inertial fusion (HIF). Our numerical fluid implosion simulations present that the implosion non-uniformity is mitigated successfully by the wobbling HIBs illumination in HIF.

Keywords

Heavy-ion beamImplosion uniformityInertial confinement fusionNon-uniformity mitigationRayleigh–Taylor instability
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 4 , December 2016 , pp. 735 - 741
Copyright
Copyright © Cambridge University Press 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Atzeni, S. & Meyer-Ter-vehn, J. (2004). The Physics of Inertial Fusion. Oxford: Oxford Science Pub.Google Scholar
Bangerter, R.O., Faltens, A. & Seidl, P.A. (2013). Accelerators for Inertial Fusion Energy Prodction. Reviews of Accelerator Science and Technology 6, 85–116.Google Scholar
Betti, R., Mccrory, R.L. & Verdon, C.P. (1993). Stability analysis of unsteady ablation fronts. Phys. Rev. Lett. 71, 3131–3134.CrossRefGoogle ScholarPubMed
Boris, J.P. (1977). Dynamic stabilization of the imploding shell Rayleigh–Taylor instability. Comments Plasma Phys. Control. Fusion 3, 1–13.Google Scholar
Emery, M.H., Orens, J.H., Gardner, J.H. & Boris, J.P. (1982). Influence of nonuniform laser intensities on ablatively accelerated targets. Phys. Rev. Lett. 48, 253–256.Google Scholar
Kawata, S. (2012). Dynamic mitigation of instabilities. Phys. Plasmas 19, 024503, 1–3.Google Scholar
Kawata, S., Iizuka, Y., Kodera, Y., Ogoyski, A.I. & Kikuchi, T. (2009). Robust fuel target in heavy ion inertial fusion. Nucl. Instrum. Methods A 606, 152–156.Google Scholar
Kawata, S., Kurosaki, T., Koseki, S., Noguchi, K., Barada, D., Ogoyski, A.I., Barnard, J.J. & Logan, B.G. (2013). Wobbling heavy ion beam illumination in heavy ion inertial fusion. Plasma Fusion Res. Regul. Articles 8, 3404048, 1–4.Google Scholar
Kawata, S. & Niu, K. (1984). Effect of nonuniform implosion of target on fusion parameters. J. Phys. Soc. Jpn. 53, 3416–3426.Google Scholar
Kawata, S., Sato, T., Teramoto, T., Bandoh, E., Masubichi, Y., Watanabe, H. & Takahashi, I. (1993). Radiation effect on pellet implosion and Rayleigh–Taylor instability in light-ion beam inertial confinement fusion. Laser Part. Beams 11, 757–768.Google Scholar
Moretti, A. (1982). Utilization of high energy, small emittance accelerators for ICF target experiments. Nucl. Instrum. Methods 199, 557–561.Google Scholar
Nuckolls, J., Wood, L., Thiessen, A. & Zimmmerman, G. (1972). Laser compression of matter to super-high densities: thermonuclear (CTR) applications. Nature 239, 139–142.Google Scholar
Piriz, A.R., Piriz, S.A. & Tahir, N.A. (2011). Dynamic stabilization of classical Rayleigh–Taylor instability. Phys. Plasmas 18, 092705, 1–9.Google Scholar
Piriz, A.R., Prieto, G.R., Diaz, I.M. & Cela, J.J.L. (2010). Dynamic stabilization of Rayleigh–Taylor instability in Newtonian fluids. Phys. Rev. E 82, 026317, 1–11.Google Scholar
Troyon, F. & Gruber, R. (1971). Theory of the dynamic stabilization of the Rayleigh–Taylor instability. Phys. Fluids 14, 2069–2073.CrossRefGoogle Scholar
Wolf, G.H. (1970). Dynamic stabilization of the interchange instability of a liquid-gas interface. Phys. Rev. Lett. 24, 444–446.Google Scholar