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Control of fuel target implosion non-uniformity in heavy ion inertial fusion

Published online by Cambridge University Press:  02 November 2016

T. Iinuma ,
T. Karino ,
S. Kondo ,
T. Kubo ,
H. Kato ,
T. Suzuki ,
S. Kawata  and
A.I. Ogoyski
T. Iinuma*
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
T. Karino
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
S. Kondo
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
T. Kubo
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
H. Kato
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
T. Suzuki
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
S. Kawata*
Affiliation:
Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan
A.I. Ogoyski
Affiliation:
Department of Physics, Varna Technical University, Varna 9010, Bulgaria
*
Address correspondence and reprint requests to: T. Iinuma and S. Kawata, Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan. E-mail: [email protected], [email protected]
Address correspondence and reprint requests to: T. Iinuma and S. Kawata, Utsunomiya University, Graduate School of Engineering, Utsunomiya 321-8585, Japan. E-mail: [email protected], [email protected]
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Abstract

In inertial fusion, one of scientific issues is to reduce an implosion non-uniformity of a spherical fuel target. The implosion non-uniformity is caused by several factors, including the driver beam illumination non-uniformity, the Rayleigh–Taylor instability (RTI) growth, etc. In this paper, we propose a new control method to reduce the implosion non-uniformity; the oscillating implosion acceleration δg(t) is created by pulsating and dephasing heavy-ion beams (HIBs) in heavy-ion inertial fusion (HIF). The δg(t) would reduce the RTI growth effectively. The original concept of the non-uniformity control in inertial fusion was proposed in [Laser Part. Beams (1993) 11, 757–768]. In this paper, it was found that the pulsating and dephasing HIBs illumination provide successfully the controlled δg(t) and that δg(t) induced by the pulsating HIBs reduces well the implosion non-uniformity. Consequently the pulsating HIBs improve a pellet gain remarkably in HIF.

Keywords

Heavy ion inertial fusionTarget implosionDynamic stabilizationWobbling beam
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 4 , December 2016 , pp. 729 - 734
Copyright
Copyright © Cambridge University Press 2016 

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References

REFERENCES

Betti, R., Mccrory, R.L. & Verdon, C.P. (1993). Stability analysis of unsteady ablation fronts. Phys. Rev. Lett. 71, 3131–3134.Google Scholar
Boris, J.P. (1977). Dynamic stabilization of the imploding shell Rayleigh–Taylor instability. Comments Plasma Phys. Cont. 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
Hirt, C.W., Amsden, A.A. & Cook, J.L. (1974). An arbitrary Lagrangian–Eulerian computing method for all flow speeds. J. Comput. Phys. 14, 227–253.Google Scholar
Kawata, S. (2012). Dynamic mitigation of instabilities. Phys. Plasmas 19, 024503, 1–3.Google Scholar
Kawata, S. & Karino, T. (2015). Robust dynamic mitigation of instabilities. Phys. Plasmas 22, 042106, 1–5.Google Scholar
Kawata, S., Karino, T. & Ogoyski, A.I. (2016). Review of heavy-ion inertial fusion physics. Matter Radiat. Extremes 1, 89–113.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., Masubuchi, Y. & 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
Ogoyski, A.I., Kawata, S. & Popov, P.H. (2010). Code OK3 – an upgraded version of OK2 with beam wobbling function. Comput. Phys. Commun. 181, 1332.CrossRefGoogle Scholar
Ogoyski, A.I., Someya, T. & Kawata, S. (2004). Code OK1 – simulation of multi-beam irradiation in heavy ion fusion. Comput. Phys. Commun. 157, 160–172.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
Skupsky, S. & Lee, K. (1983). Uniformity of energy deposition for laser driven fusion. J. Appl. Phys. 54, 3662–3671.Google Scholar
Troyon, F. & Gruber, R. (1971). Theory of the dynamic stabilization of the Rayleigh–Taylor instability. Phys. Fluids 14, 2069–2073.Google Scholar
Wolf, G.H. (1970). Dynamic stabilization of the interchange instability of a liquid-gas inter-face. Phys. Rev. Lett. 24, 444–446.Google Scholar