Experimental progress on zonal flow physics in toroidal plasmas

A. Fujisawa; T. Ido; A. Shimizu; S. Okamura; K. Matsuoka; H. Iguchi; Y. Hamada; H. Nakano; S. Ohshima; K. Itoh; K. Hoshino; K. Shinohara; Y. Miura; Y. Nagashima; S. I. Itoh; M. Shats; H. Xia; J. Q. Dong; L. W. Yan; K. J. Zhao; G. D. Conway; U. Stroth; A. V. Melnikov; L. G. Eliseev; S. E. Lysenko; S. V. Perfilov; C. Hidalgo; G. R. Tynan; C. Holland; P. H. Diamond; G. R. McKee; R. J. Fonck; D. K. Gupta; P. M. Schoch

doi:10.1088/0029-5515/47/10/S19

Experimental progress on zonal flow physics in toroidal plasmas

A. Fujisawa^*, T. Ido, A. Shimizu, S. Okamura, K. Matsuoka, H. Iguchi, Y. Hamada, H. Nakano, S. Ohshima, K. Itoh, K. Hoshino, K. Shinohara, Y. Miura, Y. Nagashima, S. I. Itoh, M. Shats, H. Xia, J. Q. Dong, L. W. Yan, K. J. ZhaoG. D. Conway, U. Stroth, A. V. Melnikov, L. G. Eliseev, S. E. Lysenko, S. V. Perfilov, C. Hidalgo, G. R. Tynan, C. Holland, P. H. Diamond, G. R. McKee, R. J. Fonck, D. K. Gupta, P. M. Schoch

^*Corresponding author for this work

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Abstract

The present status of experiments on zonal flows in magnetic confinement experiments is examined. The innovative use of traditional and modern diagnostics has revealed unambiguously the existence of zonal flows, their spatio-temporal characteristics, their relationship to turbulence and their effects on confinement. In particular, a number of observations have been accumulated on the oscillatory branch of zonal flows, named geodesic acoustic modes, suggesting the necessity for theories to give their proper description. In addition to these basic properties of zonal flows, several new methods have elucidated the processes of zonal flow generation from turbulence. Further investigation of the relationship between zonal flows and confinement is strongly encouraged as cross-device activity including low temperature, toroidal and linear devices.

Original language	English
Article number	S19
Pages (from-to)	S718-S726
Journal	Nuclear Fusion
Volume	47
Issue number	10
DOIs	https://doi.org/10.1088/0029-5515/47/10/S19
Publication status	Published - 1 Oct 2007

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Fujisawa, A., Ido, T., Shimizu, A., Okamura, S., Matsuoka, K., Iguchi, H., Hamada, Y., Nakano, H., Ohshima, S., Itoh, K., Hoshino, K., Shinohara, K., Miura, Y., Nagashima, Y., Itoh, S. I., Shats, M., Xia, H., Dong, J. Q., Yan, L. W., ... Schoch, P. M. (2007). Experimental progress on zonal flow physics in toroidal plasmas. Nuclear Fusion, 47(10), S718-S726. Article S19. https://doi.org/10.1088/0029-5515/47/10/S19

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abstract = "The present status of experiments on zonal flows in magnetic confinement experiments is examined. The innovative use of traditional and modern diagnostics has revealed unambiguously the existence of zonal flows, their spatio-temporal characteristics, their relationship to turbulence and their effects on confinement. In particular, a number of observations have been accumulated on the oscillatory branch of zonal flows, named geodesic acoustic modes, suggesting the necessity for theories to give their proper description. In addition to these basic properties of zonal flows, several new methods have elucidated the processes of zonal flow generation from turbulence. Further investigation of the relationship between zonal flows and confinement is strongly encouraged as cross-device activity including low temperature, toroidal and linear devices.",

author = "A. Fujisawa and T. Ido and A. Shimizu and S. Okamura and K. Matsuoka and H. Iguchi and Y. Hamada and H. Nakano and S. Ohshima and K. Itoh and K. Hoshino and K. Shinohara and Y. Miura and Y. Nagashima and Itoh, {S. I.} and M. Shats and H. Xia and Dong, {J. Q.} and Yan, {L. W.} and Zhao, {K. J.} and Conway, {G. D.} and U. Stroth and Melnikov, {A. V.} and Eliseev, {L. G.} and Lysenko, {S. E.} and Perfilov, {S. V.} and C. Hidalgo and Tynan, {G. R.} and C. Holland and Diamond, {P. H.} and McKee, {G. R.} and Fonck, {R. J.} and Gupta, {D. K.} and Schoch, {P. M.}",

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Fujisawa, A, Ido, T, Shimizu, A, Okamura, S, Matsuoka, K, Iguchi, H, Hamada, Y, Nakano, H, Ohshima, S, Itoh, K, Hoshino, K, Shinohara, K, Miura, Y, Nagashima, Y, Itoh, SI, Shats, M, Xia, H, Dong, JQ, Yan, LW, Zhao, KJ, Conway, GD, Stroth, U, Melnikov, AV, Eliseev, LG, Lysenko, SE, Perfilov, SV, Hidalgo, C, Tynan, GR, Holland, C, Diamond, PH, McKee, GR, Fonck, RJ, Gupta, DK & Schoch, PM 2007, 'Experimental progress on zonal flow physics in toroidal plasmas', Nuclear Fusion, vol. 47, no. 10, S19, pp. S718-S726. https://doi.org/10.1088/0029-5515/47/10/S19

TY - JOUR

T1 - Experimental progress on zonal flow physics in toroidal plasmas

AU - Fujisawa, A.

AU - Ido, T.

AU - Shimizu, A.

AU - Okamura, S.

AU - Matsuoka, K.

AU - Iguchi, H.

AU - Hamada, Y.

AU - Nakano, H.

AU - Ohshima, S.

AU - Itoh, K.

AU - Hoshino, K.

AU - Shinohara, K.

AU - Miura, Y.

AU - Nagashima, Y.

AU - Itoh, S. I.

AU - Shats, M.

AU - Xia, H.

AU - Dong, J. Q.

AU - Yan, L. W.

AU - Zhao, K. J.

AU - Conway, G. D.

AU - Stroth, U.

AU - Melnikov, A. V.

AU - Eliseev, L. G.

AU - Lysenko, S. E.

AU - Perfilov, S. V.

AU - Hidalgo, C.

AU - Tynan, G. R.

AU - Holland, C.

AU - Diamond, P. H.

AU - McKee, G. R.

AU - Fonck, R. J.

AU - Gupta, D. K.

AU - Schoch, P. M.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - The present status of experiments on zonal flows in magnetic confinement experiments is examined. The innovative use of traditional and modern diagnostics has revealed unambiguously the existence of zonal flows, their spatio-temporal characteristics, their relationship to turbulence and their effects on confinement. In particular, a number of observations have been accumulated on the oscillatory branch of zonal flows, named geodesic acoustic modes, suggesting the necessity for theories to give their proper description. In addition to these basic properties of zonal flows, several new methods have elucidated the processes of zonal flow generation from turbulence. Further investigation of the relationship between zonal flows and confinement is strongly encouraged as cross-device activity including low temperature, toroidal and linear devices.

AB - The present status of experiments on zonal flows in magnetic confinement experiments is examined. The innovative use of traditional and modern diagnostics has revealed unambiguously the existence of zonal flows, their spatio-temporal characteristics, their relationship to turbulence and their effects on confinement. In particular, a number of observations have been accumulated on the oscillatory branch of zonal flows, named geodesic acoustic modes, suggesting the necessity for theories to give their proper description. In addition to these basic properties of zonal flows, several new methods have elucidated the processes of zonal flow generation from turbulence. Further investigation of the relationship between zonal flows and confinement is strongly encouraged as cross-device activity including low temperature, toroidal and linear devices.

UR - http://www.scopus.com/inward/record.url?scp=34547823149&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/47/10/S19

DO - 10.1088/0029-5515/47/10/S19

M3 - Article

SN - 0029-5515

VL - 47

SP - S718-S726

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 10

M1 - S19

ER -

Experimental progress on zonal flow physics in toroidal plasmas

Abstract

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