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U.S. Department of Energy
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Theoretical studies of Elmo Bumpy Torus. Annual report

Technical Report ·
OSTI ID:6844522
The work was divided into six basic areas. Modeling studies compared neoclassical and Fokker-Planck analyses of the core plasma electrons with EBT-S data. Ion physics studies treated propagation and absorption of ion cyclotron waves along with investigation of the effect of wave absorption and instabilities on the ion distribution function. Parametric instability calculations identified processes and thresholds for nonlinear electron cyclotron resonance (ECR) wave absorption. Ring physics studies considered not only energetics and spatial effects, but also scaling and startup scenarios, along with the attendant microwave power requirements. Radio frequency (RF) control studies considered the possibility of influencing transport by wave absorption; related studies produced the important predictions of RF stabilization of interchange modes, without ponderomotive effects. Finally, microwave deposition studies considered the geometric aspects of propagation and absorption of microwaves in a real EBT cavity system.
Research Organization:
JAYCOR, San Diego, CA (USA)
DOE Contract Number:
AC01-82ER53126
OSTI ID:
6844522
Report Number(s):
DOE/ER/53126-T1; ON: DE84010814
Country of Publication:
United States
Language:
English