Extension of Alcator C-Mod's ICRF experimental capability

Journal Article · Mon Sep 20 04:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.59702· OSTI ID:20216717

Schilling, G ^[1]; Hosea, J C ^[1]; Wilson, J R ^[1]; Bonoli, P T ^[2]; Lee, W D ^[2]; Nelson-Melby, E ^[2]; Porkolab, M ^[2]; Wukitch, S J ^[2]

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1. Princeton University Plasma Physics Laboratory, Princeton, New Jursey 08543 (United States)
2. MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)

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.

• OSTI ID: 20216717
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 485; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ICR HEATING
MAGNETIC FIELDS
POWER RANGE 01-10 MW
RF SYSTEMS
TOKAMAK TYPE REACTORS
TUNING