Thermonuclear ignition in inertial confinement fusion and comparison with magnetic confinement

R. Betti, P. Y. Chang, B. K. Spears, K. S. Anderson, J. Edwards, M. Fatenejad, J. D. Lindl, R. L. McCrory, R. Nora, D. Shvarts

研究成果: Article

94 引文 斯高帕斯(Scopus)

摘要

The physics of thermonuclear ignition in inertial confinement fusion (ICF) is presented in the familiar frame of a Lawson-type criterion. The product of the plasma pressure and confinement time Pτ for ICF is cast in terms of measurable parameters and its value is estimated for cryogenic implosions. An overall ignition parameter including pressure, confinement time, and temperature is derived to complement the product Pτ. A metric for performance assessment should include both and Pτ. The ignition parameter and the product Pτ are compared between inertial and magnetic-confinement fusion. It is found that cryogenic implosions on OMEGA [T. R. Boehly, Opt. Commun. 133, 495 (1997)] have achieved P τ∼1.5 atm s comparable to large tokamaks such as the Joint European Torus [P. H. Rebut and B. E. Keen, Fusion Technol. 11, 13 (1987)] where Pτ∼1 atm s. Since OMEGA implosions are relatively cold (T∼2 keV), their overall ignition parameter ∼0.02-0.03 is ∼5× lower than in JET (∼0.13), where the average temperature is about 10 keV.

原文English
文章編號058102
期刊Physics of Plasmas
17
發行號5
DOIs
出版狀態Published - 2010 五月 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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  • 引用此

    Betti, R., Chang, P. Y., Spears, B. K., Anderson, K. S., Edwards, J., Fatenejad, M., Lindl, J. D., McCrory, R. L., Nora, R., & Shvarts, D. (2010). Thermonuclear ignition in inertial confinement fusion and comparison with magnetic confinement. Physics of Plasmas, 17(5), [058102]. https://doi.org/10.1063/1.3380857