Results 11 to 20 of about 73 (64)
Macroscopic stability and. beta. limits in the ELMO Bumpy Torus [PDF]
Magnetohydrodynamic stability limits are determined for the ELMO Bumpy Torus. The relativistic hot electron annuli are considered to be rigid, modifying the magnetic field but not interacting with the instability. A modified energy principle is used, and the stability problem is reduced to determination of the eigenvalues of an ordinary differential ...
Nelson, D. B., Hedrick, C. L.
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Numerical model for radial transport in the ELMO Bumpy Torus [PDF]
Neutral and charged particle densities and temperatures are calculated as functions of radius for the toroidal plasma in the ELMO Bumpy Torus (EBT) experiment. Energy dependent ionization and charge-exchange rates, ambipolar diffusion, and self-consistent radial electric field profiles are included.
Jaeger, E. F., Hedrick, C. L.
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A THEORETICAL STUDY OF MICROWAVE HEATING IN ELMO BUMPY TORUS [PDF]
Because the plasma in ELMO Bumpy Torus (EBT) is produced and heated by microwaves, and macrostability is dependent on microwaves through the formation of the annuli, an understanding of microwave propagation and energy deposition is a crucial element in EBT theory.
Batchelor, D B +2 more
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Plasma fluctuation measurements in ELMO bumpy torus
Spatially resolved density fluctuation measurements in the dc frequency range up to 500 kHz have been conducted on the ELMO Bumpy Torus (EBT-I) plasma using photodetectors and Langmuir probes. Plasma currents produced by microwave-heated hot electron annuli were found to reduce fluctuations of toroidal plasma to low levels.
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Electron Energy Confinement in ELMO Bumpy Torus (EBT)
Using a calibrated, solid-state, soft x-ray detector, the electron temperature and density have been measured over a wide range of operating conditions of ELMO Bumpy Torus (EBT). The empirical relations of the temperature or the density to the microwave power and the ambient pressure have been determined.
S. Hiroe, G. R. Haste, R. A. Dandl
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Transient waveform acquisition system for the ELMO Bumpy Torus
The transient waveform system described in this report is designed to acquire analog waveforms from the ELMO Bumpy Torus (EBT) diagnostic experiments. Pressure, density, synchrotron radiation, etc., are acquired and digitized with a Kinetic Systems TR812 transient recorder and associated modules located in a CAMAC crate.
K. G. Young +3 more
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Confinement heating and stability in the ELMO bumpy torus (EBT)
High power ECH (utilizing a 28-GHz gyrotron at power levels up to 200 kW, cw) and fast-wave ICH (in the frequency range 15-30 MHz at power levels up to 20 kW, cw) experiments on EBT-Scale (EBT-S) have yielded Te approximately 1.1 keV, n approximately 1-2*1018 m-3, and tau E approximately 6 ms.
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