H-mode pedestal and L-H transition studies on alcator C-Mod

J. W. Hughes; A. E. Hubbard; D. A. Mossessian; B. LaBombard; T. M. Biewer; R. S. Granetz; M. Greenwald; I. H. Hutchinson; J. H. Irby; Y. Lin; E. S. Marmar; M. Porkolab; J. E. Rice; J. A. Snipes; J. L. Terry; S. Wolfe; K. Zhurovich

doi:10.13182/FST07-A1425

H-mode pedestal and L-H transition studies on alcator C-Mod

J. W. Hughes, A. E. Hubbard, D. A. Mossessian, B. LaBombard, T. M. Biewer, R. S. Granetz, M. Greenwald, I. H. Hutchinson, J. H. Irby, Y. Lin, E. S. Marmar, M. Porkolab, J. E. Rice, J. A. Snipes, J. L. Terry, S. Wolfe, K. Zhurovich

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

39 Scopus citations

Abstract

H-mode research on Alcator C-Mod is described, with a focus on the edge transport barrier (ETB). ETB pedestals are characterized using several diagnostics, leading to a thorough description of profile structure in H-mode. L-H transition criteria are discussed, along with the fast evolution of the pedestal following the L-H transition. H-mode regimes are described in terms of their edge transport characteristics and the local edge parameters favoring each. Empirical scalings of the pedestal with operational parameters are found, helping to illuminate physics governing the pedestal structure, and the relationship between edge transport and global confinement is discussed. Dimensionless comparisons between discharges on different tokamaks are discussed. Finally, ongoing work and directions for the future are described.

Original language	English
Pages (from-to)	317-341
Number of pages	25
Journal	Fusion Science and Technology
Volume	51
Issue number	3
DOIs	https://doi.org/10.13182/FST07-A1425
State	Published - Apr 2007
Externally published	Yes

Keywords

Alcator C-Mod tokamak
Edge transport barrier
H-mode threshold

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.13182/FST07-A1425

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Hughes, J. W., Hubbard, A. E., Mossessian, D. A., LaBombard, B., Biewer, T. M., Granetz, R. S., Greenwald, M., Hutchinson, I. H., Irby, J. H., Lin, Y., Marmar, E. S., Porkolab, M., Rice, J. E., Snipes, J. A., Terry, J. L., Wolfe, S., & Zhurovich, K. (2007). H-mode pedestal and L-H transition studies on alcator C-Mod. Fusion Science and Technology, 51(3), 317-341. https://doi.org/10.13182/FST07-A1425

@article{06de1f5d115044589ac60fc51e738f2c,

title = "H-mode pedestal and L-H transition studies on alcator C-Mod",

abstract = "H-mode research on Alcator C-Mod is described, with a focus on the edge transport barrier (ETB). ETB pedestals are characterized using several diagnostics, leading to a thorough description of profile structure in H-mode. L-H transition criteria are discussed, along with the fast evolution of the pedestal following the L-H transition. H-mode regimes are described in terms of their edge transport characteristics and the local edge parameters favoring each. Empirical scalings of the pedestal with operational parameters are found, helping to illuminate physics governing the pedestal structure, and the relationship between edge transport and global confinement is discussed. Dimensionless comparisons between discharges on different tokamaks are discussed. Finally, ongoing work and directions for the future are described.",

keywords = "Alcator C-Mod tokamak, Edge transport barrier, H-mode threshold",

author = "Hughes, {J. W.} and Hubbard, {A. E.} and Mossessian, {D. A.} and B. LaBombard and Biewer, {T. M.} and Granetz, {R. S.} and M. Greenwald and Hutchinson, {I. H.} and Irby, {J. H.} and Y. Lin and Marmar, {E. S.} and M. Porkolab and Rice, {J. E.} and Snipes, {J. A.} and Terry, {J. L.} and S. Wolfe and K. Zhurovich",

year = "2007",

month = apr,

doi = "10.13182/FST07-A1425",

language = "English",

volume = "51",

pages = "317--341",

journal = "Fusion Science and Technology",

issn = "1536-1055",

publisher = "Taylor and Francis Group",

number = "3",

}

Hughes, JW, Hubbard, AE, Mossessian, DA, LaBombard, B, Biewer, TM, Granetz, RS, Greenwald, M, Hutchinson, IH, Irby, JH, Lin, Y, Marmar, ES, Porkolab, M, Rice, JE, Snipes, JA, Terry, JL, Wolfe, S & Zhurovich, K 2007, 'H-mode pedestal and L-H transition studies on alcator C-Mod', Fusion Science and Technology, vol. 51, no. 3, pp. 317-341. https://doi.org/10.13182/FST07-A1425

TY - JOUR

T1 - H-mode pedestal and L-H transition studies on alcator C-Mod

AU - Hughes, J. W.

AU - Hubbard, A. E.

AU - Mossessian, D. A.

AU - LaBombard, B.

AU - Biewer, T. M.

AU - Granetz, R. S.

AU - Greenwald, M.

AU - Hutchinson, I. H.

AU - Irby, J. H.

AU - Lin, Y.

AU - Marmar, E. S.

AU - Porkolab, M.

AU - Rice, J. E.

AU - Snipes, J. A.

AU - Terry, J. L.

AU - Wolfe, S.

AU - Zhurovich, K.

PY - 2007/4

Y1 - 2007/4

N2 - H-mode research on Alcator C-Mod is described, with a focus on the edge transport barrier (ETB). ETB pedestals are characterized using several diagnostics, leading to a thorough description of profile structure in H-mode. L-H transition criteria are discussed, along with the fast evolution of the pedestal following the L-H transition. H-mode regimes are described in terms of their edge transport characteristics and the local edge parameters favoring each. Empirical scalings of the pedestal with operational parameters are found, helping to illuminate physics governing the pedestal structure, and the relationship between edge transport and global confinement is discussed. Dimensionless comparisons between discharges on different tokamaks are discussed. Finally, ongoing work and directions for the future are described.

AB - H-mode research on Alcator C-Mod is described, with a focus on the edge transport barrier (ETB). ETB pedestals are characterized using several diagnostics, leading to a thorough description of profile structure in H-mode. L-H transition criteria are discussed, along with the fast evolution of the pedestal following the L-H transition. H-mode regimes are described in terms of their edge transport characteristics and the local edge parameters favoring each. Empirical scalings of the pedestal with operational parameters are found, helping to illuminate physics governing the pedestal structure, and the relationship between edge transport and global confinement is discussed. Dimensionless comparisons between discharges on different tokamaks are discussed. Finally, ongoing work and directions for the future are described.

KW - Alcator C-Mod tokamak

KW - Edge transport barrier

KW - H-mode threshold

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U2 - 10.13182/FST07-A1425

DO - 10.13182/FST07-A1425

M3 - Article

AN - SCOPUS:34248165046

SN - 1536-1055

VL - 51

SP - 317

EP - 341

JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 3

ER -

H-mode pedestal and L-H transition studies on alcator C-Mod

Abstract

Keywords

UN SDGs

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