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Proton–boron-11 fusion reactions induced by heat-detonation burning waves

Published online by Cambridge University Press:  09 March 2009

S. Eliezer  and
J. M. Martínez-Val
J. M. Martínez-Val
Affiliation:
Institute of Nuclear Fusion, Madrid Polytechnic University, Spain
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Abstract

Proton-boron-11 is the clean fusion reaction par excellence, but it is very difficult to exploit it because of the very high ignition temperature of this reaction and its moderate fusion yield. In this paper, a proposal is made to induce these reactions by a heat-detonation wave that expands across a compressed target. The front of the wave has a double-layer structure, with a first front driven by electron heat conduction and a second front heated by α-particle energy deposition. Both fronts create a hot plasma where the stopping power is dominated by ions. The wave is originated by an ignitor triggered by an ultraintense lightning beam. This beam can be made of photons (laser), plasma (ramjets), or ions (proton beams, borane clusters). Proton beam shots of 1022. W/cm2 and several GA for some picoseconds would be needed for this purpose. The supersonic propagation of the fusion wave and the ignitor requirements are analyzed in this paper. The main conclusion is that the burning wave can only propagate if a substantial fraction of the radiation losses from the already burning fuel is reabsorbed in the colder fuel. It is calculated that for densities larger than few thousands g/cm3 most of the bremsstrahlung radiation created in the hot plasma can be reabsorbed by the Compton effect in a region of 1 g/cm2 optical thickness of the surrounding compressed and cold fuel.

Type
Regular Papers
Information
Laser and Particle Beams , Volume 16 , Issue 4 , December 1998 , pp. 581 - 598
Copyright
Copyright © Cambridge University Press 1998

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References

REFERENCES

Abramowitz, M. & Stegun, I.A. (eds.) 1964 Handbook of Mathematical Functions (Dover Pub., New York), p. 228.Google Scholar
Bodner, S. 1974 Phys. Rev. Lett. 33, 761.CrossRefGoogle Scholar
Chu, M.S. 1972 Phys. Fluids 15, 413.CrossRefGoogle Scholar
Churazov, M.D. & Sharkov, B.Yu 1993 Nuovo Cimento 106A, 1944.Google Scholar
Dawson, J. 1968 In Advances in Plasmas Physics, Vol. 1, Simon, A. and Thompson, W.B., eds. (Interscience Pub., New York), pp. 1–66.Google Scholar
Dawson, J.M. 1976 Plasma Physics Group Report PPG-273, University of California.Google Scholar
Dawson, J.M. 1981 In Fusion, Vol. 1, Part B, Dawson, J.M., ed. (Academic Press, New York), Chap. 16, p. 453.CrossRefGoogle Scholar
Deutsch, C. 1986 Ann. Phys. (Paris) 11, 1.Google Scholar
Deutsch, C. et al. 1996 Phys. Rev. Lett. 77, 2483.CrossRefGoogle Scholar
Deutsch, C. et al. 1997 Fusion Technol. 31, 1.CrossRefGoogle Scholar
Eliezer, S. 1995 Laser Part. Beams 13, 43.CrossRefGoogle Scholar
Greene, J. 1959 Astrophys. J. 130, 693.CrossRefGoogle Scholar
Gus'kov, S.Yu. & Rozanov, V. 1993 In Nuclear Fusion by Inertial Confinement, Velarde, G. et al. , eds. (CRC Press, Florida), Chap. 12.Google Scholar
Gus'kov, S.Yu. et al. 1994 JETP 79, 581.Google Scholar
Honda, T. et al. 1991 Nucl. Fusion 31, 851.CrossRefGoogle Scholar
Honrubia, J.J. 1993 In Nuclear Fusion by Inertial Confinement, Velarde, G. et al. , eds. (CRC Press, Florida), Chap. 9.Google Scholar
Hora, H. & Ray, P.S. 1978, Z. Naturforsch. 33A, 890.CrossRefGoogle Scholar
Kidder, R.E. 1974 Nucl. Fusion 14, 953.Google Scholar
Krokhin, O.N. 1971 In Physics of High Energy Density, Calderola, P. and Knoepfl, H., eds. (Academic Press, New York), pp. 71–96.Google Scholar
Lindl, J.D. 1995 Phys. Plasmas 2, 3933.CrossRefGoogle Scholar
Linhart, J.G. 1993 Nuovo Cimento 106A, 1949.CrossRefGoogle Scholar
Martínez-Val, J.M. & Piera, M. 1997 Fusion Technol. 32, 131.CrossRefGoogle Scholar
Martínez-Val, J.M. et al. 1993 Nuovo Cimento 106A, 1873.CrossRefGoogle Scholar
Martínez-Val, J.M. et al. 1994 Laser Part. Beams 12, 681.CrossRefGoogle Scholar
Martínez-Val, J.M. et al. 1996 Phys. Lett. A 216, 142.CrossRefGoogle Scholar
Maynard, G. & Deutsch, C. 1982 Phys. Rev. A 26, 665.CrossRefGoogle Scholar
McQueen, R.G. 1989 In High-Pressure Equations of State: Theory and Applications, Eliezer, S. and Ricci, R., eds. (North-Holland Pub., Amsterdam), Chap. 6.Google Scholar
Meyer-Ter-Vehn, J. 1982 Nucl. Fusion 22, 561.CrossRefGoogle Scholar
Miley, G.H. et al. 1991 Fusion Technol. 19, 43.CrossRefGoogle Scholar
Pieruschka, P. et al. 1992 Laser Part. Beams 10, 145.CrossRefGoogle Scholar
Pomraning, G.C. 1973 The Equations of Radiation Hydrodynamics (Pergamon Press, Oxford).Google Scholar
Spitzer, L. 1962 Physics of Fully Ionized Gases (Interscience, New York).Google Scholar
Spitzer, L.S. 1978 Physical Processes in the Interstellar Medium (John Wiley, New York).Google Scholar
Tabak, M. et al. 1994 Phys. Plasmas 1, 1626.CrossRefGoogle Scholar
Weaver, T. et al. 1973 UCRL 74191 and 74352, Lawrence Livermore National Laboratory.Google Scholar
Yamanaka, C. et al. 1986 Phys. Rev. Lett. 56, 1575.CrossRefGoogle Scholar
Zinamon, Z. 1993 In Nuclear Fusion by Inertial Confinement, Velarde, G. et al. , eds. (CRC Press, Florida), Chap. 5.Google Scholar