Investigation of auxiliary heating in tandem mirrors and tokamaks and barrier cell pumping. Annual progress report, October 1, 1980 to December 31, 1981

Technical Report · Mon Jun 01 00:00:00 EDT 1981

OSTI ID:6290351

Emmert, G A; Scharer, J

The research has focussed on physics questions concerned with ECRH heating in tandem mirror plugs, pumping of tandem mirror thermal barriers by drift orbits, ICRH heating in tokamaks, and bundle divertors. We have concluded that drift-orbit pumping of thermal barriers is not feasible because the azimuthal E Vector X B Vector drift limits the excursion of trapped ions from a flux surface. We have developed a three-dimensional weakly relativistic (T/sub e/ less than or equal to 50 keV) ray tracing and absorption code for electron cyclotron heating in tandem mirror plugs and barriers. Cases run for TMX, MFTF-B and reactors at T/sub e/ > 10 keV show that strong absorption per pass is present and a careful choice of wave frequency and launch angle is required to ensure wave penetration and absorption in the plasma core. In the area of ion cyclotron frequency range heating in tokamaks, a three-dimensional hot plasma ray tracing theory and code has been developed to handle rays launched from any poloidal angle in the tokamak cross section. Wave heating in the central strong absorption zones is currently being investigated using a full wave solution for the various heating regimes.

• Research Organization: Wisconsin Univ., Madison (USA)
• DOE Contract Number: AC02-79ET53083
• OSTI ID: 6290351
• Report Number(s): DOE/ET/53083-3; ON: DE81026777; TRN: 81-015764
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECR HEATING
TMX DEVICES
BUNDLE DIVERTORS
ORBITS
PLASMA DRIFT
TOKAMAK DEVICES
CLOSED PLASMA DEVICES
DIVERTORS
HEATING
HIGH-FREQUENCY HEATING
MAGNETIC MIRRORS
OPEN PLASMA DEVICES
PLASMA HEATING
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production