Simulation of inertial and beam-driven effects on impurities in tokamak plasmas

Technical Report · Fri Jul 01 04:00:00 EDT 1983

DOI:https://doi.org/10.2172/6079086· OSTI ID:6079086

Crume, Jr., E. C.

Experiments on beam-heated tokamak plasmas in the Impurity Study Experiment (ISX-B) indicate that counterinjection leads to enhanced accumulation of impurities and coinjection leads to reduced accumulation of impurities relative to ohmically heated plasmas. According to neoclassical theory, both inertial and beam-driven effects can modify impurity distributions in beam-heated plasmas. We have implemented treatments of these effects in our basic impurity transport simulation code, IMPTAR, in order to investigate whether these effects could account for the observations in ISX-B. We briefly review the neoclassical theory of these effects and infer various consequences. We then present simulation results for model coinjected and counterinjected ISX-B plasma with inertial and beam-driven effects treated both separately and together.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6079086
• Report Number(s): ORNL/TM-8699; ON: DE83014892
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
BEAM INJECTION
CLOSED PLASMA DEVICES
IMPURITIES
ISX TOKAMAK
NEOCLASSICAL TRANSPORT THEORY
NEUTRAL ATOM BEAM INJECTION
SIMULATION
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
TRANSPORT THEORY