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Title: Guiding center simulations of strong ion beams with applications to the Counterstreaming Ion Torus

Abstract

In the proposed Counterstreaming Ion Torus (CIT) steady state rather than pulsed operation may be possible if all of the plasma power density is provided by neutral beam injection. After the neutral beams have penetrated the magnetic field, strong ion beam currents are produced. A major concern with the relatively strong counterstreaming ion currents is the effect of the beam self-magnetic fields on the macroscopic equilibrium of the system. Pinching and self focusing of the individual beams may occur, or the repulsive interaction of the two oppositely directed beam currents may destroy the equilibrium entirely. We investigate this macroscopic behavior of the ion beams with a guiding center plasma particle simulation model and we describe a model we have developed to simulate steady state behavior in an ideal CIT configuration.

Authors:
Publication Date:
Research Org.:
California Univ., Livermore (USA). Lawrence Livermore Lab.
OSTI Identifier:
5085151
Report Number(s):
UCRL-52436
TRN: 78-010454
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: Thesis
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NEUTRAL ATOM BEAM INJECTION; CHARGED-PARTICLE TRANSPORT; GUIDING-CENTER APPROXIMATION; THERMONUCLEAR REACTORS; BEAM CURRENTS; EQUATIONS OF MOTION; FOKKER-PLANCK EQUATION; ION BEAMS; ION DRIFT; NUMERICAL SOLUTION; PLASMA DENSITY; PLASMA SIMULATION; TOROIDAL CONFIGURATION; ANNULAR SPACE; BEAM INJECTION; BEAMS; CONFIGURATION; CURRENTS; DIFFERENTIAL EQUATIONS; EQUATIONS; RADIATION TRANSPORT; 700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)

Citation Formats

Tull, C. Guiding center simulations of strong ion beams with applications to the Counterstreaming Ion Torus. United States: N. p., 1978. Web. doi:10.2172/5085151.
Tull, C. Guiding center simulations of strong ion beams with applications to the Counterstreaming Ion Torus. United States. https://doi.org/10.2172/5085151
Tull, C. 1978. "Guiding center simulations of strong ion beams with applications to the Counterstreaming Ion Torus". United States. https://doi.org/10.2172/5085151. https://www.osti.gov/servlets/purl/5085151.
@article{osti_5085151,
title = {Guiding center simulations of strong ion beams with applications to the Counterstreaming Ion Torus},
author = {Tull, C},
abstractNote = {In the proposed Counterstreaming Ion Torus (CIT) steady state rather than pulsed operation may be possible if all of the plasma power density is provided by neutral beam injection. After the neutral beams have penetrated the magnetic field, strong ion beam currents are produced. A major concern with the relatively strong counterstreaming ion currents is the effect of the beam self-magnetic fields on the macroscopic equilibrium of the system. Pinching and self focusing of the individual beams may occur, or the repulsive interaction of the two oppositely directed beam currents may destroy the equilibrium entirely. We investigate this macroscopic behavior of the ion beams with a guiding center plasma particle simulation model and we describe a model we have developed to simulate steady state behavior in an ideal CIT configuration.},
doi = {10.2172/5085151},
url = {https://www.osti.gov/biblio/5085151}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {3}
}