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Title: A Lower Hybrid Current Drive System for Alcator C-Mod

Abstract

A Lower Hybrid Current Drive system is being constructed jointly by Plasma Science and Fusion Center (PSFC) and Princeton Plasma Physics Laboratory (PPPL) for installation on the Alcator C-Mod tokamak, with the primary goal of driving plasma current in the outer region of the plasma. The Lower Hybrid (LH) system consists of 3 MW power at 4.6 GHz with a maximum pulse length of 5 seconds. Twelve klystrons will feed an array of 4-vertical and 24-horizontal waveguides mounted in one equatorial port. The coupler will incorporate some compact characteristics of the multijunction power splitting while retaining full control of the toroidal phase. In addition a dynamic phase control system will allow feedback stabilization of MHD modes. The desire to avoid possible waveguide breakdown and the need for compactness have resulted in some innovative technical solution which will be presented.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
781841
Report Number(s):
PPPL-3559
TRN: US0102976
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 4 May 2001
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BREAKDOWN; CONTROL SYSTEMS; FEEDBACK; KLYSTRONS; LOWER HYBRID CURRENT DRIVE; STABILIZATION; WAVEGUIDES; ALCATOR DEVICE

Citation Formats

Bernabei, S, Hosea, J C, Loesser, D, Rushinski, J, Wilson, J R, Bonoli, P, Grimes, M, Parker, R, Porkolab, M, Terry, D, and Woskov, P. A Lower Hybrid Current Drive System for Alcator C-Mod. United States: N. p., 2001. Web. doi:10.2172/781841.
Bernabei, S, Hosea, J C, Loesser, D, Rushinski, J, Wilson, J R, Bonoli, P, Grimes, M, Parker, R, Porkolab, M, Terry, D, & Woskov, P. A Lower Hybrid Current Drive System for Alcator C-Mod. United States. doi:10.2172/781841.
Bernabei, S, Hosea, J C, Loesser, D, Rushinski, J, Wilson, J R, Bonoli, P, Grimes, M, Parker, R, Porkolab, M, Terry, D, and Woskov, P. Fri . "A Lower Hybrid Current Drive System for Alcator C-Mod". United States. doi:10.2172/781841. https://www.osti.gov/servlets/purl/781841.
@article{osti_781841,
title = {A Lower Hybrid Current Drive System for Alcator C-Mod},
author = {Bernabei, S and Hosea, J C and Loesser, D and Rushinski, J and Wilson, J R and Bonoli, P and Grimes, M and Parker, R and Porkolab, M and Terry, D and Woskov, P},
abstractNote = {A Lower Hybrid Current Drive system is being constructed jointly by Plasma Science and Fusion Center (PSFC) and Princeton Plasma Physics Laboratory (PPPL) for installation on the Alcator C-Mod tokamak, with the primary goal of driving plasma current in the outer region of the plasma. The Lower Hybrid (LH) system consists of 3 MW power at 4.6 GHz with a maximum pulse length of 5 seconds. Twelve klystrons will feed an array of 4-vertical and 24-horizontal waveguides mounted in one equatorial port. The coupler will incorporate some compact characteristics of the multijunction power splitting while retaining full control of the toroidal phase. In addition a dynamic phase control system will allow feedback stabilization of MHD modes. The desire to avoid possible waveguide breakdown and the need for compactness have resulted in some innovative technical solution which will be presented.},
doi = {10.2172/781841},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {5}
}