LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE.

M. Porkolab; B. Lloyd; J. J. Schuss; Y. Takase; S. Texter; R. Watterson; P. Bonoli; R. Englade; C. Fiore; R. Gandy; R. Granetz; M. Greenwald; D. Gwinn; B. Lipschultz; E. Marmar

LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE.

M. Porkolab^*, B. Lloyd, J. J. Schuss, Y. Takase, S. Texter, R. Watterson, P. Bonoli, R. Englade, C. Fiore, R. Gandy, R. Granetz, M. Greenwald, D. Gwinn, B. Lipschultz, E. Marmar

^*Corresponding author for this work

Physics

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

Abstract

Results of lower hybrid heating and current drive experiments on the Alcator C tokamak are reported. Up to 1. 15 MW of net rf power at 4. 6 GHz has been coupled to the Alcator plasma through two 4 multiplied by 4 waveguide arrays. A brazed BeO ceramic window is located approximately 10-15 cm from the plasma end in each waveguide which has a dimension of 0. 8 multiplied by 5. 75 cm. Each array is moveable by bellows relative to the plasma in order to optimize coupling. Thus, the typical total reflected power in each array is 5-10% when it is positioned so that the density is approximately equals 3 multiplied by 10**1**2 minus 1 multiplied by 10**1**3cm** minus **3 at the waveguide mouth. A typical routinely operating power density is 7 kW/cm**2. The first array has operated in the machine for 1. 5 years without any evidence of damage either due to rf arcing or plasma disruptions.

Original language	English
Title of host publication	Commission of the European Communities, (Report) EUR
Editors	Heinz Knoepfel, Elio Sindoni
Place of Publication	Perugia, Italy
Publisher	Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi
Pages	529-545
Number of pages	17
Volume	1
Publication status	Published - 1 Dec 1984

Cite this

Porkolab, M., Lloyd, B., Schuss, J. J., Takase, Y., Texter, S., Watterson, R., Bonoli, P., Englade, R., Fiore, C., Gandy, R., Granetz, R., Greenwald, M., Gwinn, D., Lipschultz, B., & Marmar, E. (1984). LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE. In H. Knoepfel, & E. Sindoni (Eds.), Commission of the European Communities, (Report) EUR (Vol. 1, pp. 529-545). Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi.

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title = "LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE.",

abstract = "Results of lower hybrid heating and current drive experiments on the Alcator C tokamak are reported. Up to 1. 15 MW of net rf power at 4. 6 GHz has been coupled to the Alcator plasma through two 4 multiplied by 4 waveguide arrays. A brazed BeO ceramic window is located approximately 10-15 cm from the plasma end in each waveguide which has a dimension of 0. 8 multiplied by 5. 75 cm. Each array is moveable by bellows relative to the plasma in order to optimize coupling. Thus, the typical total reflected power in each array is 5-10% when it is positioned so that the density is approximately equals 3 multiplied by 10**1**2 minus 1 multiplied by 10**1**3cm** minus **3 at the waveguide mouth. A typical routinely operating power density is 7 kW/cm**2. The first array has operated in the machine for 1. 5 years without any evidence of damage either due to rf arcing or plasma disruptions.",

author = "M. Porkolab and B. Lloyd and Schuss, {J. J.} and Y. Takase and S. Texter and R. Watterson and P. Bonoli and R. Englade and C. Fiore and R. Gandy and R. Granetz and M. Greenwald and D. Gwinn and B. Lipschultz and E. Marmar",

year = "1984",

month = dec,

day = "1",

language = "English",

volume = "1",

pages = "529--545",

editor = "Heinz Knoepfel and Elio Sindoni",

booktitle = "Commission of the European Communities, (Report) EUR",

publisher = "Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi",

}

Porkolab, M, Lloyd, B, Schuss, JJ, Takase, Y, Texter, S, Watterson, R, Bonoli, P, Englade, R, Fiore, C, Gandy, R, Granetz, R, Greenwald, M, Gwinn, D, Lipschultz, B & Marmar, E 1984, LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE. in H Knoepfel & E Sindoni (eds), Commission of the European Communities, (Report) EUR. vol. 1, Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi, Perugia, Italy, pp. 529-545.

LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE. / Porkolab, M.; Lloyd, B.; Schuss, J. J. et al.
Commission of the European Communities, (Report) EUR. ed. / Heinz Knoepfel; Elio Sindoni. Vol. 1 Perugia, Italy: Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi, 1984. p. 529-545.

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

TY - GEN

T1 - LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C

T2 - HEATING AND CURRENT DRIVE.

AU - Porkolab, M.

AU - Lloyd, B.

AU - Schuss, J. J.

AU - Takase, Y.

AU - Texter, S.

AU - Watterson, R.

AU - Bonoli, P.

AU - Englade, R.

AU - Fiore, C.

AU - Gandy, R.

AU - Granetz, R.

AU - Greenwald, M.

AU - Gwinn, D.

AU - Lipschultz, B.

AU - Marmar, E.

PY - 1984/12/1

Y1 - 1984/12/1

N2 - Results of lower hybrid heating and current drive experiments on the Alcator C tokamak are reported. Up to 1. 15 MW of net rf power at 4. 6 GHz has been coupled to the Alcator plasma through two 4 multiplied by 4 waveguide arrays. A brazed BeO ceramic window is located approximately 10-15 cm from the plasma end in each waveguide which has a dimension of 0. 8 multiplied by 5. 75 cm. Each array is moveable by bellows relative to the plasma in order to optimize coupling. Thus, the typical total reflected power in each array is 5-10% when it is positioned so that the density is approximately equals 3 multiplied by 10**1**2 minus 1 multiplied by 10**1**3cm** minus **3 at the waveguide mouth. A typical routinely operating power density is 7 kW/cm**2. The first array has operated in the machine for 1. 5 years without any evidence of damage either due to rf arcing or plasma disruptions.

AB - Results of lower hybrid heating and current drive experiments on the Alcator C tokamak are reported. Up to 1. 15 MW of net rf power at 4. 6 GHz has been coupled to the Alcator plasma through two 4 multiplied by 4 waveguide arrays. A brazed BeO ceramic window is located approximately 10-15 cm from the plasma end in each waveguide which has a dimension of 0. 8 multiplied by 5. 75 cm. Each array is moveable by bellows relative to the plasma in order to optimize coupling. Thus, the typical total reflected power in each array is 5-10% when it is positioned so that the density is approximately equals 3 multiplied by 10**1**2 minus 1 multiplied by 10**1**3cm** minus **3 at the waveguide mouth. A typical routinely operating power density is 7 kW/cm**2. The first array has operated in the machine for 1. 5 years without any evidence of damage either due to rf arcing or plasma disruptions.

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M3 - Conference contribution

AN - SCOPUS:0021602168

VL - 1

SP - 529

EP - 545

BT - Commission of the European Communities, (Report) EUR

A2 - Knoepfel, Heinz

A2 - Sindoni, Elio

PB - Int Sch of Plasma Physics, Varenna, Italy. Distributed by Monotypia Franchi

CY - Perugia, Italy

ER -

LOWER HYBRID EXPERIMENTS AT THE 1 MW LEVEL ON ALCATOR C: HEATING AND CURRENT DRIVE.

Abstract

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