Abstract
An analysis of ohmic ignition criteria is presented, giving the requirements onT, nτ, andn/j in a form easily applicable to various confinement assumptions. For circular cross-section “NeoAlcator” tokamaks with Spitzer resistivity, a value ofB 2 a approximately equal to 250 T2m is required. The outstanding uncertainties in schemes to lower this value are how much increase in current density is achievable by plasma shaping and what the exact NeoAlcator coefficient is.
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References
D. R. Cohn and L. Bromberg, submitted toJ. Fusion Energy.
B. Coppi,Comm. Plasma Phys. Cont. Fusion,3, 47 (1977).
C. E. Wagner,Phys. Rev. Lett,46, 654 (1981).
J. P. Christiansen and K. V. Roberts,Nucl. Fusion,22, 77 (1982).
N. A. Uckan and J. Sheffield inTokamak Startup, H. Knoepfel, Ed. (Plenum Publishers, New York, 1986).
M. S. Chu, R. W. Harvey, P. A. Politzer, and T. Yamagishi,Nucl. Fusion,25, 835 (1985).
R. R. Parker, M. Greenwald, S. C. Luckhardt, E. S. Marmar, M. Porkolab, and S. M. Wolfe,Nucl. Fusion,25, 1127 (1985).
D. R. Cohn, L. Bromberg, and D. L. Jassby, 7th Topical Meeting on Fusion Technology, Reno (1986).
W. M. Stacey,Fusion Plasma Analysis (John Wiley & Sons, 1981).
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Hutchinson, I.H. Requirements for ohmic ignition. J Fusion Energ 6, 257–264 (1987). https://doi.org/10.1007/BF01050791
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DOI: https://doi.org/10.1007/BF01050791