Investigation of high energy runaway electron confinement in the Oak Ridge tokamak

Thesis/Dissertation · Tue Nov 01 00:00:00 EST 1977

DOI:https://doi.org/10.2172/5207694· OSTI ID:5207694

Zweben, Stewart Jay ^[1]

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1. Cornell Univ., Ithaca, NY (United States)

High energy runaway electrons in the Oak Ridge tokamak ORMAK have been investigated through measurement of the bremsstrahlung produced when these electrons leave the discharge and strike the limiting aperture of the torus. The experimental results have been interpreted in terms of a classical single-particle model appropriate for collisionless particles in a tokamak, and it has been found that most of the confinement properties of high energy runaways in ORMAK can be understood on this basis. An experiment designed to directly test this model has disclosed an anomalous transport which has been described by a runaway diffusion coefficient D approximately 10² to 10⁴ cm²sec appropriate for runaways near the outside of the plasma. A discussion of the possible mechanisms for this anomalous transport is given.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5207694
• Report Number(s): ORNL/TM-6030; TRN: 78-004919
• Resource Relation: Other Information: Thesis
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK TYPE REACTORS
RUNAWAY ELECTRONS
BREMSSTRAHLUNG
COLLISIONLESS PLASMA
ELECTRON DRIFT
ELECTRONS
ORBITS
PLASMA CONFINEMENT
X-RAY SPECTRA
CONFINEMENT
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
PLASMA
RADIATIONS
SPECTRA
THERMONUCLEAR REACTORS
700103* - Fusion Energy- Plasma Research- Kinetics