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

doi:10.1063/1.3380857

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

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

156 Citations (Scopus)

Abstract

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 P_τ 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 P_τ. A metric for performance assessment should include both and P_τ. The ignition parameter and the product P_τ 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 P_τ∼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.

Original language	English
Article number	058102
Journal	Physics of Plasmas
Volume	17
Issue number	5
DOIs	https://doi.org/10.1063/1.3380857
Publication status	Published - 2010 May

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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@article{c0d5ea43edee41808408924b16f6e1d4,

title = "Thermonuclear ignition in inertial confinement fusion and comparison with magnetic confinement",

abstract = "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.",

author = "R. Betti and Chang, {P. Y.} and Spears, {B. K.} and Anderson, {K. S.} and J. Edwards and M. Fatenejad and Lindl, {J. D.} and McCrory, {R. L.} and R. Nora and D. Shvarts",

note = "Funding Information: This work has been supported by the U.S. Department of Energy under Cooperative Agreement Nos. DE-FC02-04ER54789 (Fusion Science Center supported by the Office of Fusion Energy Sciences) and DE-FC52-08NA28302 (Office of Inertial Confinement Fusion), the New York State Energy Research Development Authority, and the University of Rochester. The support of DOE does not constitute an endorsement by DOE of the views expressed in this article.",

year = "2010",

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doi = "10.1063/1.3380857",

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AU - Betti, R.

AU - Chang, P. Y.

AU - Spears, B. K.

AU - Anderson, K. S.

AU - Edwards, J.

AU - Fatenejad, M.

AU - Lindl, J. D.

AU - McCrory, R. L.

AU - Nora, R.

AU - Shvarts, D.

N1 - Funding Information: This work has been supported by the U.S. Department of Energy under Cooperative Agreement Nos. DE-FC02-04ER54789 (Fusion Science Center supported by the Office of Fusion Energy Sciences) and DE-FC52-08NA28302 (Office of Inertial Confinement Fusion), the New York State Energy Research Development Authority, and the University of Rochester. The support of DOE does not constitute an endorsement by DOE of the views expressed in this article.

PY - 2010/5

Y1 - 2010/5

N2 - 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.

AB - 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.

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Thermonuclear ignition in inertial confinement fusion and comparison with magnetic confinement

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