Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-23T03:45:33.514Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermonuclear gain and parameters of fast ignition ICF-targets

Published online by Cambridge University Press:  07 June 2005

S. YU. GUS'KOV
S. YU. GUS'KOV
Affiliation:
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
Get access Rights & Permissions [Opens in a new window]

Abstract

The requirements of matching shell ICF target parameters, parameters of compressing, and triggering drivers under direct (fast) ignition are developed. Thin shell target, which represents a shell-ablator with a DT-ice layer, frosted on the inner surface of the shell are considered. Design of a target which ensures the energy supply from the triggering driver to the central part of thermonuclear fuel, in both spherical and cylindrical geometry is developed. Spherical target is furnished with one or two conical channels for the injection of the triggering driver radiation. The ends of the cylindrical target are protected by heavy material walls that have the holes of the radius equal to the final radius of compressed fuel. It was found that the parameters of fast ignition spherical and cylindrical targets, which provide high thermonuclear gain of 500–2000 in the range of the compressing driver energy of 1–10 MJ, may be matched with the drivers parameters at low aspect ratios of the targets, 10–20. The operation of spherical targets at the moderate radius convergence ratio of 15–20, may be provided at the triggering driver energy not higher than 30 kJ. The operation of cylindrical target with spin-oriented DT-fuel at radius convergence ratio of 20–25 may be provided at 150–200 kJ of the triggering driver energy.

Keywords

DriverIgnitionShell targetSpin-oriented fuelThermonuclear gain
Type
Research Article
Information
Laser and Particle Beams , Volume 23 , Issue 2 , June 2005 , pp. 255 - 260
Copyright
2005 Cambridge University Press

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.)

Footnotes

This paper was presented at the 28th ECLIM conference in Rome, Italy.

References

REFERENCES

Afanas'ev, Yu.V. & Gus'kov, S.Yu. (1993). Energy transfer to the plasma in laser target. In Nuclear Fusion by Inertial Confinement (Velarde, G., Ed.), pp. 99–118. Ann Arbor: CRC Press.
Andreev, A.A., Gus'kov, S.Yu, Il'in D.V, Levkovskii, A.A., Rozanov, V.B., &Sherman, V.E. (2002). On the possibility of target plasma ignition under the conditions of inertial nuclear fusion. JETP 96, 695–703.Google Scholar
Basko, M.M., Churazov, M.D. & Aksenov, A.G. (2002). Prospects of heavy ion fusion in cylindrical geometry. Laser Part. Beams 20, 411–414.CrossRefGoogle Scholar
Basov, N.G., Gus'kov, S.Yu. & Feoktistov, L.P. (1991). ICF targets with direct heating of the ignitor. Proc. 21st European Conference on Laser Interaction with Matter, Warsaw, Poland, 189–191.
Basov, N.G, Gus'kov, S.Yu. & Feoktistov, L.P. (1992). Thermonuclear gain of ICF targets with direct heating of the ignitor. J. Soviet Laser Res. 13, 396–399.CrossRefGoogle Scholar
Borisenko, N.G., Akunets, A.A., Bushuev, V.S., Dorogotovtsev, V.M. & Merkuliev, Yu.A. (2003). Motivation and fabrication methods for inertial confinement fusion and inertial fusion energy targets. Laser Part. Beams 21, 505–509.Google Scholar
Caruso, A. (1995). Gain of laser compressed DT-fuel ignited by injected triggers. Proc. of I.A.E.A. Technical Committee Meeting on Drivers for Inertial Confinement Fusion, pp. 325–339. Paris, France.
Caruso, A. & Strangio, C. (2001). Studies on nonconventional high-gain target design for ICF. Laser Part. Beams 19, 295–308.CrossRefGoogle Scholar
Gus'kov, S.Yu. (2001). Direct ignition of inertial fusion targets by a laser-plasma ion stream. Quantum Electronics 31, 885–890.CrossRefGoogle Scholar
Gus'kov, S.Yu., Demchenko, N.N., Rozanov, V.B., Stepanov R.V., Zmitrenko, N.V., Caruso, A., &Strangio, C. (2003). Symmetric compression of “laser greenhouse targets” by a few laser beams. Quantum Electronics 33, 95–104.CrossRefGoogle Scholar
Hatchett, S.P., Brown, C.G., Cowan, Th.E., Henry, E.A., Johnson, J.S., Key, M.H., Koch, J.A., Langdon, A.B., Lasinski, B.F., Lee, R.W., Mackinnon, A.J., Pennington, D.M., Perry, M.D., Phillips, Th.W., Roth, M., Sangster, T.C., Singh, M.S., Snavely, R.A., Stoyer, M.A., Wilks, S.C. & Yasuike, K. (2000). Electron, photon, and ion beams from the relativistic interaction of Petawatt laser pulses with solid targets. Phys. Plasmas 7, 2076–2082.CrossRefGoogle Scholar
Mulser, P. & Bauer, D. (2004). Fast ignition of fusion pellets with superintense lasers: Concepts, problems and prospectives. Laser Part. Beams 22, 5–12.CrossRefGoogle Scholar
Rozanov, V.B., Verdon, C.P., Decroisette, M., Gus'kov, S.Yu., Lindl, J., Nakai, S., Nishihara, M. & Velarde, G. (1995). Inertial confinement target physics. In Energy from Inertial Fusion (Hogan, W., Ed.), pp. 1–64. Vienna: INEA
Tabak, M., Hammer, J., Glinsky, M.E., Kruer, W.L., Wilks, S.C., Woodworth, J., Campbell, E.M., Perry, M.D. & Mason, R.J. (1994). Ignition and high gain with ultrapowerful lasers. Phys. Plasmas 1, 1626–1634.CrossRefGoogle Scholar