Magnetic Confinement: 1. Tokamaks – United States of America

High-beta tokamak research

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, , Citation C.K. Chu et al 1985 Nucl. Fusion 25 1109 DOI 10.1088/0029-5515/25/9/021

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Author affiliations

1 Plasma Physics Laboratory, Columbia University, New York, N.Y., United States of America

2 AT&T Bell Laboratories, Murray Hill, NJ,USA.

3 PPPL, Princeton, NJ,USA.

4 IBM Instruments, Inc., Danbury, CT,USA.

5 PPPL, Princeton, NJ, USA.

6 Universidade Estadual de Campinas, São Paulo, Brazil.

7 Physics Department, University of Iowa, Iowa City, IA, USA.

8 FOM-Instituut voor Plasmafysica, Nieuwegein, Netherlands.

9 LANL, Los Alamos, NM, USA.

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0029-5515/25/9/1109

Abstract

The Torus II high-beta tokamak has studied plasmas with ⟨β⟩ in the range 9–13%. Both stable and unstable equilibria were observed; in the case of unstable equilibria, the instability had the characteristics of high-toroidal-mode-number ballooning. The experimental equilibria were modelled computationally and tested for stability. Predicted growth rates and critical mode numbers are in reasonable agreement with observation.

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10.1088/0029-5515/25/9/021