Experimental observation of the blob-generation mechanism from interchange waves in a plasma

I. Furno; B. Labit; M. Podestà; A. Fasoli; S. H. Müller; F. M. Poli; P. Ricci; C. Theiler; S. Brunner; A. Diallo; J. Graves

doi:10.1103/PhysRevLett.100.055004

Experimental observation of the blob-generation mechanism from interchange waves in a plasma

I. Furno
, B. Labit
, M. Podestà
, A. Fasoli
, S. H. Müller
, F. M. Poli
, P. Ricci
, C. Theiler
, S. Brunner
, A. Diallo
, J. Graves

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

152 Scopus citations

Abstract

The mechanism for blob generation in a toroidal magnetized plasma is investigated using time-resolved measurements of two-dimensional structures of electron density, temperature, and plasma potential. The blobs are observed to form from a radially elongated structure that is sheared off by the E×B flow. The structure is generated by an interchange wave that increases in amplitude and extends radially in response to a decrease of the radial pressure scale length. The dependence of the blob amplitude upon the pressure radial scale length is discussed.

Original language	English (US)
Article number	055004
Journal	Physical review letters
Volume	100
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.100.055004
State	Published - Feb 6 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.100.055004

Cite this

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title = "Experimental observation of the blob-generation mechanism from interchange waves in a plasma",

abstract = "The mechanism for blob generation in a toroidal magnetized plasma is investigated using time-resolved measurements of two-dimensional structures of electron density, temperature, and plasma potential. The blobs are observed to form from a radially elongated structure that is sheared off by the E×B flow. The structure is generated by an interchange wave that increases in amplitude and extends radially in response to a decrease of the radial pressure scale length. The dependence of the blob amplitude upon the pressure radial scale length is discussed.",

author = "I. Furno and B. Labit and M. Podest{\`a} and A. Fasoli and M{\"u}ller, \{S. H.\} and Poli, \{F. M.\} and P. Ricci and C. Theiler and S. Brunner and A. Diallo and J. Graves",

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doi = "10.1103/PhysRevLett.100.055004",

language = "English (US)",

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T1 - Experimental observation of the blob-generation mechanism from interchange waves in a plasma

AU - Furno, I.

AU - Labit, B.

AU - Podestà, M.

AU - Fasoli, A.

AU - Müller, S. H.

AU - Poli, F. M.

AU - Ricci, P.

AU - Theiler, C.

AU - Brunner, S.

AU - Diallo, A.

AU - Graves, J.

PY - 2008/2/6

Y1 - 2008/2/6

N2 - The mechanism for blob generation in a toroidal magnetized plasma is investigated using time-resolved measurements of two-dimensional structures of electron density, temperature, and plasma potential. The blobs are observed to form from a radially elongated structure that is sheared off by the E×B flow. The structure is generated by an interchange wave that increases in amplitude and extends radially in response to a decrease of the radial pressure scale length. The dependence of the blob amplitude upon the pressure radial scale length is discussed.

AB - The mechanism for blob generation in a toroidal magnetized plasma is investigated using time-resolved measurements of two-dimensional structures of electron density, temperature, and plasma potential. The blobs are observed to form from a radially elongated structure that is sheared off by the E×B flow. The structure is generated by an interchange wave that increases in amplitude and extends radially in response to a decrease of the radial pressure scale length. The dependence of the blob amplitude upon the pressure radial scale length is discussed.

UR - https://www.scopus.com/pages/publications/38949148689

UR - https://www.scopus.com/pages/publications/38949148689#tab=citedBy

U2 - 10.1103/PhysRevLett.100.055004

DO - 10.1103/PhysRevLett.100.055004

M3 - Article

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AN - SCOPUS:38949148689

SN - 0031-9007

VL - 100

JO - Physical review letters

JF - Physical review letters

IS - 5

M1 - 055004

ER -

Experimental observation of the blob-generation mechanism from interchange waves in a plasma

Abstract

All Science Journal Classification (ASJC) codes

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