Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging

M. A. Van Zeeland, J. H. Yu, Ming-Sheng Chu, K. H. Burrell, R. J. La Haye, T. C. Luce, R. Nazikian, W. M. Solomon, W. P. West

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Time evolved measurements of the detailed 2D poloidal structure of rotating tearing modes in the DIII-D tokamak are obtained for the first time using spectrally filtered fast imaging of broadband visible bremsstrahlung emission (NB). Measurements are made along 256 × 256 different sightlines and show excellent agreement with simulations assuming a rotating helical m/n = 2/1 island structure superimposed on the equilibrium NB profile. The method described here is capable of imaging with high resolution the structure of coherent oscillations in the core of current and next-step fusion plasma experiments such as ITER and can be applied to virtually any mode with a finite perturbed NB and frequency in the laboratory frame provided sufficient signal level and detector bandwidth are available.

Original languageEnglish
Article number092002
JournalNuclear Fusion
Volume48
Issue number9
DOIs
Publication statusPublished - 2008 Sep 1

Fingerprint

bremsstrahlung
fusion
time measurement
broadband
bandwidth
oscillations
high resolution
detectors
profiles
simulation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Van Zeeland, M. A., Yu, J. H., Chu, M-S., Burrell, K. H., La Haye, R. J., Luce, T. C., ... West, W. P. (2008). Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging. Nuclear Fusion, 48(9), [092002]. https://doi.org/10.1088/0029-5515/48/9/092002
Van Zeeland, M. A. ; Yu, J. H. ; Chu, Ming-Sheng ; Burrell, K. H. ; La Haye, R. J. ; Luce, T. C. ; Nazikian, R. ; Solomon, W. M. ; West, W. P. / Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging. In: Nuclear Fusion. 2008 ; Vol. 48, No. 9.
@article{8abab3d673714da9929354ebbb4aab51,
title = "Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging",
abstract = "Time evolved measurements of the detailed 2D poloidal structure of rotating tearing modes in the DIII-D tokamak are obtained for the first time using spectrally filtered fast imaging of broadband visible bremsstrahlung emission (NB). Measurements are made along 256 × 256 different sightlines and show excellent agreement with simulations assuming a rotating helical m/n = 2/1 island structure superimposed on the equilibrium NB profile. The method described here is capable of imaging with high resolution the structure of coherent oscillations in the core of current and next-step fusion plasma experiments such as ITER and can be applied to virtually any mode with a finite perturbed NB and frequency in the laboratory frame provided sufficient signal level and detector bandwidth are available.",
author = "{Van Zeeland}, {M. A.} and Yu, {J. H.} and Ming-Sheng Chu and Burrell, {K. H.} and {La Haye}, {R. J.} and Luce, {T. C.} and R. Nazikian and Solomon, {W. M.} and West, {W. P.}",
year = "2008",
month = "9",
day = "1",
doi = "10.1088/0029-5515/48/9/092002",
language = "English",
volume = "48",
journal = "Nuclear Fusion",
issn = "0029-5515",
publisher = "IOP Publishing Ltd.",
number = "9",

}

Van Zeeland, MA, Yu, JH, Chu, M-S, Burrell, KH, La Haye, RJ, Luce, TC, Nazikian, R, Solomon, WM & West, WP 2008, 'Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging', Nuclear Fusion, vol. 48, no. 9, 092002. https://doi.org/10.1088/0029-5515/48/9/092002

Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging. / Van Zeeland, M. A.; Yu, J. H.; Chu, Ming-Sheng; Burrell, K. H.; La Haye, R. J.; Luce, T. C.; Nazikian, R.; Solomon, W. M.; West, W. P.

In: Nuclear Fusion, Vol. 48, No. 9, 092002, 01.09.2008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Tearing mode structure in the DIII-D tokamak through spectrally filtered fast visible bremsstrahlung imaging

AU - Van Zeeland, M. A.

AU - Yu, J. H.

AU - Chu, Ming-Sheng

AU - Burrell, K. H.

AU - La Haye, R. J.

AU - Luce, T. C.

AU - Nazikian, R.

AU - Solomon, W. M.

AU - West, W. P.

PY - 2008/9/1

Y1 - 2008/9/1

N2 - Time evolved measurements of the detailed 2D poloidal structure of rotating tearing modes in the DIII-D tokamak are obtained for the first time using spectrally filtered fast imaging of broadband visible bremsstrahlung emission (NB). Measurements are made along 256 × 256 different sightlines and show excellent agreement with simulations assuming a rotating helical m/n = 2/1 island structure superimposed on the equilibrium NB profile. The method described here is capable of imaging with high resolution the structure of coherent oscillations in the core of current and next-step fusion plasma experiments such as ITER and can be applied to virtually any mode with a finite perturbed NB and frequency in the laboratory frame provided sufficient signal level and detector bandwidth are available.

AB - Time evolved measurements of the detailed 2D poloidal structure of rotating tearing modes in the DIII-D tokamak are obtained for the first time using spectrally filtered fast imaging of broadband visible bremsstrahlung emission (NB). Measurements are made along 256 × 256 different sightlines and show excellent agreement with simulations assuming a rotating helical m/n = 2/1 island structure superimposed on the equilibrium NB profile. The method described here is capable of imaging with high resolution the structure of coherent oscillations in the core of current and next-step fusion plasma experiments such as ITER and can be applied to virtually any mode with a finite perturbed NB and frequency in the laboratory frame provided sufficient signal level and detector bandwidth are available.

UR - http://www.scopus.com/inward/record.url?scp=51949091707&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51949091707&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/48/9/092002

DO - 10.1088/0029-5515/48/9/092002

M3 - Article

AN - SCOPUS:51949091707

VL - 48

JO - Nuclear Fusion

JF - Nuclear Fusion

SN - 0029-5515

IS - 9

M1 - 092002

ER -