Erratum: “Electron temperature gradient instability in

Erratum: “Electron temperature gradient instability in toroidal plasmas” [Phys. Plasmas 9, 4699 (2002)] J. Q. Dong, H. Sanuki, K. Itoh, and Liu Chen Citation: Phys. Plasmas 10, 914 (2003); doi: 10.1063/1.1544497 View online: http://dx.doi.org/10.1063/1.1544497 View Table of Contents: http://pop.aip.org/resource/1/PHPAEN/v10/i3 Published by the AIP Publishing LLC.

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PHYSICS OF PLASMAS

VOLUME 10, NUMBER 3

MARCH 2003

ERRATA

Erratum: ‘‘Electron temperature gradient instability in toroidal plasmas’’ †Phys. Plasmas 9, 4699 „2002…‡ J. Q. Dong Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People’s Republic of China

H. Sanuki and K. Itoh National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

Liu Chen Department of Physics and Astronomy, University of California, Irvine, California 92697-4575

共Received 13 December 2002; accepted 13 December 2002兲 关DOI: 10.1063/1.1544497兴

rier formation may be successfully simulated by employing this model of turbulent transport coefficient. A kinetic study which studied the effect of electron temperature gradient has shown that there is a strong instability in the range of collisionless skin depth.12 Critical parameter of nonlinear instability, including finite gyroradius effect, is in progress.13 A collaborative mechanism with the electron temperature gradient mode might occur, and must be investigated in future. These issues, together with more parameter scans for ETG modes, are under investigation and the results will be presented in future works.

The last paragraph of the paper should be replaced by the following paragraphs. The anomalous transport of electrons has also been studied by analyzing the modes in the range of ion gyroradius 共like trapped electron mode1– 6兲 and in the range of collisionless skin depth 共such as current diffusive ballooning mode兲.7,8 Turbulence driven by trapped electron mode 共TEM兲 may be important for electron thermal and particle transport, as has been shown experimentally1,2 and theoretically.3,4 The spatial scale of TEM is the same as ITG and therefore much longer than ETG. The strong coupling between TEM and ITG modes has been demonstrated and the effects of the former on the latter and related ion transport have been emphasized.5,6 Theoretical study of the interaction between TEM and ETG modes and calculation of threshold (R/L Te ) c for TEM are rare.4 In addition, TEM is essentially driven by trapped electron 共TE兲 precession resonance and fraction of TE is a crucial parameter in determination of TEM threshold. It is even possible that TEM is unstable without electron temperature gradient if the fraction and density gradient are large enough.5 Fluctuations in the range of collisionless skin depth have been considered to be responsible for electron transport in tokamaks.9 Analysis of current diffusive ballooning modes has shown that this mode could be nonlinearly unstable and self-sustained turbulence is predicted to appear.10,11 The turbulent transport coefficient has been obtained. Transport analysis has shown that L-mode plasmas and transport bar-

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G. T. Hoang, C. Bourdelle, X. Garbet, G. Giruzzi, T. Aneil, M. Ottaviani, W. Horton, P. Zhu, and R. V. Budny, Phys. Rev. Lett. 87, 125001 共2001兲. 2 F. Ryter, C. Angioni, M. Beurskens et al., Plasma Phys. Controlled Fusion 43, A323 共2001兲. 3 M. A. Beer, G. W. Hammett, G. Rewoldt, E. J. Synakovski, M. C. Zanstorff, and W. Dorland, Phys. Plasmas 4, 1792 共1997兲. 4 H. Nordman, J. Weiland, and A. Jarmen, Nucl. Fusion 30, 983 共1990兲. 5 J. Q. Dong, S. M. Mahajan, and W. Horton, Phys. Plasmas 4, 755 共1997兲. 6 G. Rewoldt and W. M. Tang, Phys. Fluids B 2, 318 共1990兲. 7 K. Itoh, S.-I. Itoh, and A. Fukuyama, Phys. Rev. Lett. 69, 1050 共1992兲. 8 M. Yagi, K. Itoh, S.-I. Itoh, A. Fukuyama, and M. Azumi, Phys. Fluids B 5, 3702 共1993兲. 9 T. Ohkawa, Phys. Lett. 67A, 35 共1978兲. 10 K. Itoh, S.-I. Itoh, and A. Fukuyama, Transport and Structural Formation in Plasmas 共IOP, England, 1999兲. 11 A. Fukuyama, K. Itoh, S.-I. Itoh, M. Yagi, and M. Azumi, Plasma Phys. Controlled Fusion 36, 1385 共1994兲; 37, 611 共1995兲. 12 A. Smolyakov, M. Yagi, and Y. Kishimoto, Phys. Rev. Lett. 89, 125005 共2002兲. 13 M. Uchida, A. Fukuyama, S.-I. Itoh, and M. Yagi, J. Plasma Fusion Res. SERIES 2, 117 共1999兲.

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