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Title: Extension of Alcator C-Mod's ICRF experimental capability

Abstract

A new 4-strap single-ended ICRF antenna has been added to the Alcator C-Mod tokamak. PPPL designed, fabricated, and tested the antenna up to 45 kV on an rf test stand. It is capable of symmetric phasing for ICRF heating studies, and asymmetric phasing with an improved directed wave spectrum for current drive. Two new 2 MW transmitters, tunable from 40-80 MHz, allow operation in plasma at 43, 60, and 78 MHz to match a variety of toroidal fields and plasma conditions. This addition increases the total available ICRF power to 4 MW at 80 MHz plus 4 MW at 40-80 MHz. Plasma heating and current drive experiments at the extended power levels and new frequencies are planned, and initial system performance will be discussed. (c) 1999 American Institute of Physics.

Authors:
 [1];  [1];  [1];  [2];  [2];  [2];  [2];  [2]
  1. Princeton University Plasma Physics Laboratory, Princeton, New Jursey 08543 (United States)
  2. MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)
Publication Date:
OSTI Identifier:
20216717
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 485; Journal Issue: 1; Other Information: PBD: 20 Sep 1999; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ICR HEATING; TOKAMAK TYPE REACTORS; RF SYSTEMS; POWER RANGE 01-10 MW; TUNING; MAGNETIC FIELDS

Citation Formats

Schilling, G., Hosea, J. C., Wilson, J. R., Bonoli, P. T., Lee, W. D., Nelson-Melby, E., Porkolab, M., and Wukitch, S. J. Extension of Alcator C-Mod's ICRF experimental capability. United States: N. p., 1999. Web. doi:10.1063/1.59702.
Schilling, G., Hosea, J. C., Wilson, J. R., Bonoli, P. T., Lee, W. D., Nelson-Melby, E., Porkolab, M., & Wukitch, S. J. Extension of Alcator C-Mod's ICRF experimental capability. United States. doi:10.1063/1.59702.
Schilling, G., Hosea, J. C., Wilson, J. R., Bonoli, P. T., Lee, W. D., Nelson-Melby, E., Porkolab, M., and Wukitch, S. J. Mon . "Extension of Alcator C-Mod's ICRF experimental capability". United States. doi:10.1063/1.59702.
@article{osti_20216717,
title = {Extension of Alcator C-Mod's ICRF experimental capability},
author = {Schilling, G. and Hosea, J. C. and Wilson, J. R. and Bonoli, P. T. and Lee, W. D. and Nelson-Melby, E. and Porkolab, M. and Wukitch, S. J.},
abstractNote = {A new 4-strap single-ended ICRF antenna has been added to the Alcator C-Mod tokamak. PPPL designed, fabricated, and tested the antenna up to 45 kV on an rf test stand. It is capable of symmetric phasing for ICRF heating studies, and asymmetric phasing with an improved directed wave spectrum for current drive. Two new 2 MW transmitters, tunable from 40-80 MHz, allow operation in plasma at 43, 60, and 78 MHz to match a variety of toroidal fields and plasma conditions. This addition increases the total available ICRF power to 4 MW at 80 MHz plus 4 MW at 40-80 MHz. Plasma heating and current drive experiments at the extended power levels and new frequencies are planned, and initial system performance will be discussed. (c) 1999 American Institute of Physics.},
doi = {10.1063/1.59702},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 485,
place = {United States},
year = {1999},
month = {9}
}