Plans for improvements to the ATF ECH system

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:6741847

Bigelow, T S; Goldfinger, R C; Murakami, M; Schaich, C R; Wilgen, J B

The Advanced Toroidal Facility (ATF) stellarator experiment at Oak Ridge National Laboratory (ORNL) uses electron cyclotron waves for plasma formation and heating. Although the existing systems are quite reliable and produce acceptable plasmas, a few deficiencies should be corrected. Therefore, several possible upgrades to the electron cyclotron heating (ECH) systems have been planned. Some of the desirable changes are (1) improving the launcher to make power deposition in the plasma more centralized,(2) improving the gyrotron power waveform monitoring diagnostics, (3) building a high-field launch system for higher density operation at 53-GHz (4) building a separate transmission line for the 35-GHz gyrotron, and (5) installing a higher frequency, higher power (84- or 110-GHz) gyrotron system for improved plasma density and temperature capability. This paper discusses options for these, improvements and conceptual designs.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6741847
• Report Number(s): CONF-9210226-1; ON: DE93006207
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350 -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
700460* -- Fusion Technology-- Heating & Fueling Systems
AMPLIFIERS
ATF TORSATRON
CLOSED PLASMA DEVICES
ECR HEATING
ELECTRONIC EQUIPMENT
EQUIPMENT
Fu
Fuels-- (1992)
HEATING
HIGH-FREQUENCY HEATING
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
MODIFICATIONS
PERFORMANCE
PLASMA HEATING
POWER TRANSMISSION
STELLARATORS
THERMONUCLEAR DEVICES
TORSATRON STELLARATORS
WAVE FORMS