Correlation studies on fast electrons and dynamo-related activities in a reversed-field pinch plasma

Yasuyuki Yagi; Gianluigi Serianni; Hantao Ji; Yoshiki Maejima

doi:10.1143/jjap.38.4213

Correlation studies on fast electrons and dynamo-related activities in a reversed-field pinch plasma

Yasuyuki Yagi, Gianluigi Serianni, Hantao Ji, Yoshiki Maejima

Astrophysical Sciences

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1 Scopus citations

Abstract

Correlation of fast electron current with magnetohydrodynamic activities is studied extensively in the edge of a reversed-field pinch (RFP) plasma in TPE-1RM20 using a complex probe in order to examine the origin of the driving force for fast electrons in RFP plasma. The fast electron current is found to have a statistically meaningful coherence with the v × b dynamo electric field. However, the coherence is small and the fast electron current has finite correlations with the global magnetic modes which rotate toroidally and poloidally. Correlation with the externally applied electric field is also examined and is found to be small. Overall correlation studies are discussed in terms of the possible driving sources of fast electrons.

Original language	English (US)
Pages (from-to)	4213-4225
Number of pages	13
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	38
Issue number	7 B
DOIs	https://doi.org/10.1143/jjap.38.4213
State	Published - Jul 15 1999

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

Keywords

Correlation
Dynamo electric field
Electron energy analyzer
Fast electron
Reversed-field pinch
TPE-1RM20

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10.1143/jjap.38.4213

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abstract = "Correlation of fast electron current with magnetohydrodynamic activities is studied extensively in the edge of a reversed-field pinch (RFP) plasma in TPE-1RM20 using a complex probe in order to examine the origin of the driving force for fast electrons in RFP plasma. The fast electron current is found to have a statistically meaningful coherence with the v × b dynamo electric field. However, the coherence is small and the fast electron current has finite correlations with the global magnetic modes which rotate toroidally and poloidally. Correlation with the externally applied electric field is also examined and is found to be small. Overall correlation studies are discussed in terms of the possible driving sources of fast electrons.",

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T1 - Correlation studies on fast electrons and dynamo-related activities in a reversed-field pinch plasma

AU - Yagi, Yasuyuki

AU - Serianni, Gianluigi

AU - Ji, Hantao

AU - Maejima, Yoshiki

PY - 1999/7/15

Y1 - 1999/7/15

N2 - Correlation of fast electron current with magnetohydrodynamic activities is studied extensively in the edge of a reversed-field pinch (RFP) plasma in TPE-1RM20 using a complex probe in order to examine the origin of the driving force for fast electrons in RFP plasma. The fast electron current is found to have a statistically meaningful coherence with the v × b dynamo electric field. However, the coherence is small and the fast electron current has finite correlations with the global magnetic modes which rotate toroidally and poloidally. Correlation with the externally applied electric field is also examined and is found to be small. Overall correlation studies are discussed in terms of the possible driving sources of fast electrons.

AB - Correlation of fast electron current with magnetohydrodynamic activities is studied extensively in the edge of a reversed-field pinch (RFP) plasma in TPE-1RM20 using a complex probe in order to examine the origin of the driving force for fast electrons in RFP plasma. The fast electron current is found to have a statistically meaningful coherence with the v × b dynamo electric field. However, the coherence is small and the fast electron current has finite correlations with the global magnetic modes which rotate toroidally and poloidally. Correlation with the externally applied electric field is also examined and is found to be small. Overall correlation studies are discussed in terms of the possible driving sources of fast electrons.

KW - Correlation

KW - Dynamo electric field

KW - Electron energy analyzer

KW - Fast electron

KW - Reversed-field pinch

KW - TPE-1RM20

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JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

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ER -

Correlation studies on fast electrons and dynamo-related activities in a reversed-field pinch plasma

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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