Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod

S. Shiraiwa; P. T. Bonoli; I. Faust; O. Meneghini; A. Hubbard; R. R. Parker; A. E. Schmidt; G. M. Wallace; J. W. Hughes; R. Mumgaard; S. Scott; J. R. Wilson; R. W. Harvey; A. P. Smirnov

doi:10.1063/1.3665010

Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod

S. Shiraiwa, P. T. Bonoli, I. Faust, O. Meneghini, A. Hubbard, R. R. Parker, A. E. Schmidt, G. M. Wallace, J. W. Hughes, R. Mumgaard, S. Scott, J. R. Wilson, R. W. Harvey, A. P. Smirnov

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Electron internal transport barrier (ITB) formation is observed during fully non-inductive LHCD discharges on Alcator C-Mod. The formation is characterized by an abrupt increase of the central electron temperature after a few current penetration time has passed following LHCD turn-on. The ITB phase is often terminated by m=2 mode activity. Kinetic equilibrium reconstruction and TRANSP/LSC analysis show shear reversal in the q profile during the ITB phase. TRANSP/LSC predictive analysis suggests that f _Bs∼60% is possible if a similar temperature gradient is maintained at r/a∼0.5 with H-factor of 1.

Original language	English (US)
Title of host publication	Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference
Pages	439-442
Number of pages	4
DOIs	https://doi.org/10.1063/1.3665010
State	Published - 2011
Externally published	Yes
Event	19th Topical Conference on Radio Frequency Power in Plasmas - Newport, RI, United States Duration: Jun 1 2011 → Jul 3 2011

Publication series

Name	AIP Conference Proceedings
Volume	1406
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	19th Topical Conference on Radio Frequency Power in Plasmas
Country/Territory	United States
City	Newport, RI
Period	6/1/11 → 7/3/11

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Keywords

ITB
LHCD
tokamak

Access to Document

10.1063/1.3665010

Cite this

Shiraiwa, S., Bonoli, P. T., Faust, I., Meneghini, O., Hubbard, A., Parker, R. R., Schmidt, A. E., Wallace, G. M., Hughes, J. W., Mumgaard, R., Scott, S., Wilson, J. R., Harvey, R. W., & Smirnov, A. P. (2011). Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod. In Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference (pp. 439-442). (AIP Conference Proceedings; Vol. 1406). https://doi.org/10.1063/1.3665010

@inproceedings{6c304910f99542759db59d3b471e4eca,

title = "Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod",

abstract = "Electron internal transport barrier (ITB) formation is observed during fully non-inductive LHCD discharges on Alcator C-Mod. The formation is characterized by an abrupt increase of the central electron temperature after a few current penetration time has passed following LHCD turn-on. The ITB phase is often terminated by m=2 mode activity. Kinetic equilibrium reconstruction and TRANSP/LSC analysis show shear reversal in the q profile during the ITB phase. TRANSP/LSC predictive analysis suggests that f Bs∼60\% is possible if a similar temperature gradient is maintained at r/a∼0.5 with H-factor of 1.",

keywords = "ITB, LHCD, tokamak",

author = "S. Shiraiwa and Bonoli, \{P. T.\} and I. Faust and O. Meneghini and A. Hubbard and Parker, \{R. R.\} and Schmidt, \{A. E.\} and Wallace, \{G. M.\} and Hughes, \{J. W.\} and R. Mumgaard and S. Scott and Wilson, \{J. R.\} and Harvey, \{R. W.\} and Smirnov, \{A. P.\}",

year = "2011",

doi = "10.1063/1.3665010",

language = "English (US)",

isbn = "9780735409781",

series = "AIP Conference Proceedings",

pages = "439--442",

booktitle = "Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference",

note = "19th Topical Conference on Radio Frequency Power in Plasmas ; Conference date: 01-06-2011 Through 03-07-2011",

}

Shiraiwa, S, Bonoli, PT, Faust, I, Meneghini, O, Hubbard, A, Parker, RR, Schmidt, AE, Wallace, GM, Hughes, JW, Mumgaard, R, Scott, S, Wilson, JR, Harvey, RW & Smirnov, AP 2011, Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod. in Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference. AIP Conference Proceedings, vol. 1406, pp. 439-442, 19th Topical Conference on Radio Frequency Power in Plasmas, Newport, RI, United States, 6/1/11. https://doi.org/10.1063/1.3665010

TY - GEN

T1 - Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod

AU - Shiraiwa, S.

AU - Bonoli, P. T.

AU - Faust, I.

AU - Meneghini, O.

AU - Hubbard, A.

AU - Parker, R. R.

AU - Schmidt, A. E.

AU - Wallace, G. M.

AU - Hughes, J. W.

AU - Mumgaard, R.

AU - Scott, S.

AU - Wilson, J. R.

AU - Harvey, R. W.

AU - Smirnov, A. P.

PY - 2011

Y1 - 2011

N2 - Electron internal transport barrier (ITB) formation is observed during fully non-inductive LHCD discharges on Alcator C-Mod. The formation is characterized by an abrupt increase of the central electron temperature after a few current penetration time has passed following LHCD turn-on. The ITB phase is often terminated by m=2 mode activity. Kinetic equilibrium reconstruction and TRANSP/LSC analysis show shear reversal in the q profile during the ITB phase. TRANSP/LSC predictive analysis suggests that f Bs∼60% is possible if a similar temperature gradient is maintained at r/a∼0.5 with H-factor of 1.

AB - Electron internal transport barrier (ITB) formation is observed during fully non-inductive LHCD discharges on Alcator C-Mod. The formation is characterized by an abrupt increase of the central electron temperature after a few current penetration time has passed following LHCD turn-on. The ITB phase is often terminated by m=2 mode activity. Kinetic equilibrium reconstruction and TRANSP/LSC analysis show shear reversal in the q profile during the ITB phase. TRANSP/LSC predictive analysis suggests that f Bs∼60% is possible if a similar temperature gradient is maintained at r/a∼0.5 with H-factor of 1.

KW - ITB

KW - LHCD

KW - tokamak

UR - https://www.scopus.com/pages/publications/84863266082

UR - https://www.scopus.com/inward/citedby.url?scp=84863266082&partnerID=8YFLogxK

U2 - 10.1063/1.3665010

DO - 10.1063/1.3665010

M3 - Conference contribution

AN - SCOPUS:84863266082

SN - 9780735409781

T3 - AIP Conference Proceedings

SP - 439

EP - 442

BT - Radio Frequency Power in Plasmas - Proceedings of the 19th Topical Conference

T2 - 19th Topical Conference on Radio Frequency Power in Plasmas

Y2 - 1 June 2011 through 3 July 2011

ER -

Progress in LHCD modeling and experiments towards the at regime on Alcator C-Mod

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