Nature of monster sawteeth and their relationship to alfvén instabilities in tokamaks

S. Bernabei; M. G. Bell; R. V. Budny; E. D. Fredrickson; N. N. Gorelenkov; J. C. Hosea; R. Majeski; E. Mazzucato; C. K. Phillips; G. Schilling; J. R. Wilson

doi:10.1103/PhysRevLett.84.1212

Nature of monster sawteeth and their relationship to alfvén instabilities in tokamaks

S. Bernabei, M. G. Bell, R. V. Budny, E. D. Fredrickson, N. N. Gorelenkov, J. C. Hosea, R. Majeski, E. Mazzucato, C. K. Phillips, G. Schilling, J. R. Wilson

PPPL Tokamak Expermntl Science

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

37 Scopus citations

Abstract

A correlation is explored between the presence of energetic particle modes (EPM) and long-period sawtooth oscillations in tokamak plasmas heated by rf waves. The eventual crash of these sawteeth is explained in terms of the loss of the stabilizing fast particles due to the EPM. The absence of long-period sawteeth in high q_a discharges is explained in terms of ion loss due to toroidal Alfvén eigenmodes.

Original language	English (US)
Pages (from-to)	1212-1215
Number of pages	4
Journal	Physical review letters
Volume	84
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.84.1212
State	Published - 2000

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.84.1212

Cite this

@article{0fc56664a9274bf9ba66ef6e2a4ee6bd,

title = "Nature of monster sawteeth and their relationship to alfv{\'e}n instabilities in tokamaks",

abstract = "A correlation is explored between the presence of energetic particle modes (EPM) and long-period sawtooth oscillations in tokamak plasmas heated by rf waves. The eventual crash of these sawteeth is explained in terms of the loss of the stabilizing fast particles due to the EPM. The absence of long-period sawteeth in high qa discharges is explained in terms of ion loss due to toroidal Alfv{\'e}n eigenmodes.",

author = "S. Bernabei and Bell, \{M. G.\} and Budny, \{R. V.\} and Fredrickson, \{E. D.\} and Gorelenkov, \{N. N.\} and Hosea, \{J. C.\} and R. Majeski and E. Mazzucato and Phillips, \{C. K.\} and G. Schilling and Wilson, \{J. R.\}",

year = "2000",

doi = "10.1103/PhysRevLett.84.1212",

language = "English (US)",

volume = "84",

pages = "1212--1215",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Nature of monster sawteeth and their relationship to alfvén instabilities in tokamaks

AU - Bernabei, S.

AU - Bell, M. G.

AU - Budny, R. V.

AU - Fredrickson, E. D.

AU - Gorelenkov, N. N.

AU - Hosea, J. C.

AU - Majeski, R.

AU - Mazzucato, E.

AU - Phillips, C. K.

AU - Schilling, G.

AU - Wilson, J. R.

PY - 2000

Y1 - 2000

N2 - A correlation is explored between the presence of energetic particle modes (EPM) and long-period sawtooth oscillations in tokamak plasmas heated by rf waves. The eventual crash of these sawteeth is explained in terms of the loss of the stabilizing fast particles due to the EPM. The absence of long-period sawteeth in high qa discharges is explained in terms of ion loss due to toroidal Alfvén eigenmodes.

AB - A correlation is explored between the presence of energetic particle modes (EPM) and long-period sawtooth oscillations in tokamak plasmas heated by rf waves. The eventual crash of these sawteeth is explained in terms of the loss of the stabilizing fast particles due to the EPM. The absence of long-period sawteeth in high qa discharges is explained in terms of ion loss due to toroidal Alfvén eigenmodes.

UR - https://www.scopus.com/pages/publications/0011525105

UR - https://www.scopus.com/inward/citedby.url?scp=0011525105&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.84.1212

DO - 10.1103/PhysRevLett.84.1212

M3 - Article

C2 - 11017481

AN - SCOPUS:0011525105

SN - 0031-9007

VL - 84

SP - 1212

EP - 1215

JO - Physical review letters

JF - Physical review letters

IS - 6

ER -

Nature of monster sawteeth and their relationship to alfvén instabilities in tokamaks

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this