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Tokamak

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Plasma Physics for Controlled Fusion

Part of the book series: Springer Series on Atomic, Optical, and Plasma Physics ((SSAOPP,volume 92))

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Abstract

Section 15.1 shows the structure of large tokamak, JET, JT60U and TFTR. Section 15.2 explains stability of equilibrium position of tokamak plasma. Density limit is given by Greenwald normalized density \(N_G < 1\) in Sect. 15.3. Beta limit of elongated plasma is given by (15.9) in Sect. 15.4. Phenomena in scrape-offlayer (SOL) and divertor and the radial width of heat flux at the separatrix are explained in Sect. 15.5. The empirical energy confinement times of L mode and H mode are introduced in (15.31) in Sect. 15.6 and (15.38) in Sect. 15.7 respectively. Section 15.8 treats non-inductive current drive and bootstrap current, edge localized mode (ELM), resistive wall mode etc. for the steady state operation of tokamak. Section 15.9 describes design concept of ITER in inductively driven operation and steady state operation using non-inductive drive. Section 15.10 introduces spherical tokamak (ST) and the trials to innovative tokamak reactors.

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Notes

  1. 1.

    The working group of INTOR consisted of 4 parties namely Euratom, Japan, USA and USSR. A note with the title of ‘Who’s job is it?’ was pinned on the wall of meeting room of INTOR in IAEA building in Vienna. (This is a story about four peoples named everybody, somebody, anybody and nobody. There was an important job to be done. Everybody was asked to do it. Everybody was sure somebody would do it. Anybody could have done it, but nobody did it. Somebody got angry about that, because it was everybody’s job. Everybody thought anybody could do it, but nobody realized that everybody would’nt do it. It ends up that everybody blamed somebody when nobody did what everybody could have done.)

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  1. Tokyo, Japan

    Kenro Miyamoto

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Miyamoto, K. (2016). Tokamak. In: Plasma Physics for Controlled Fusion. Springer Series on Atomic, Optical, and Plasma Physics, vol 92. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-49781-4_15

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  • DOI: https://doi.org/10.1007/978-3-662-49781-4_15

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