Effect of collisionality and diamagnetism on the plasma dynamo

H. Ji; Y. Yagi; K. Hattori; A. F. Almagri; S. C. Prager; Y. Hirano; J. S. Sarff; T. Shimada; Y. Maejima; K. Hayase

doi:10.1103/PhysRevLett.75.1086

Effect of collisionality and diamagnetism on the plasma dynamo

H. Ji, Y. Yagi, K. Hattori, A. F. Almagri, S. C. Prager, Y. Hirano, J. S. Sarff, T. Shimada, Y. Maejima, K. Hayase

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.

Original language	English (US)
Pages (from-to)	1086-1089
Number of pages	4
Journal	Physical review letters
Volume	75
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.75.1086
State	Published - 1995

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.75.1086

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title = "Effect of collisionality and diamagnetism on the plasma dynamo",

abstract = "Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.",

author = "H. Ji and Y. Yagi and K. Hattori and Almagri, {A. F.} and Prager, {S. C.} and Y. Hirano and Sarff, {J. S.} and T. Shimada and Y. Maejima and K. Hayase",

year = "1995",

doi = "10.1103/PhysRevLett.75.1086",

language = "English (US)",

volume = "75",

pages = "1086--1089",

journal = "Physical review letters",

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T1 - Effect of collisionality and diamagnetism on the plasma dynamo

AU - Ji, H.

AU - Yagi, Y.

AU - Hattori, K.

AU - Almagri, A. F.

AU - Prager, S. C.

AU - Hirano, Y.

AU - Sarff, J. S.

AU - Shimada, T.

AU - Maejima, Y.

AU - Hayase, K.

PY - 1995

Y1 - 1995

N2 - Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.

AB - Fluctuation-induced dynamo electric fields are measured over a wide range of electron collisionality in the edge of TPE-1RM20 reversed-field pinch (RFP). In the collisionless region the magnetohydrodynamic dynamo alone can sustain the parallel current, while in the collisional region a new dynamo mechanism resulting from the fluctuations in the electron diamagnetic drift becomes dominant. A comprehensive picture of the RFP dynamo emerges by combining with earlier results from MST and REPUTE RFPs.

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U2 - 10.1103/PhysRevLett.75.1086

DO - 10.1103/PhysRevLett.75.1086

M3 - Article

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VL - 75

SP - 1086

EP - 1089

JO - Physical review letters

JF - Physical review letters

IS - 6

ER -

Effect of collisionality and diamagnetism on the plasma dynamo

Abstract

All Science Journal Classification (ASJC) codes

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