Particle and energy transport in the plasma scrape-off zone and its impact on limiter design

Journal Article · Fri Apr 01 00:00:00 EST 1983 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.572148· OSTI ID:5769477

Ulrickson, M; Post, D E

The design of limiters for fusion devices depends critically on the transport properties of the plasma edge. Recent data from Langmuir probe experiments and calorimeter probe experiments on the poloidal divertor experiment (PDX) have provided information about the transport of particles and energy in the edge region of a plasma. These data have been used as input to a simple one dimensional model in which the particle and thermal diffusion coefficients are permitted to be functions of the density and temperature. The transport coefficients deduced from the data are then applied to the cases of the TFTR device and a device like FED/INTOR to predict the optimum design for limiters or pump limiters. The results indicate the optimum limiter should have a concave shape when viewed from the plasma. The effect of the uncertainties in the deduced coefficients on the optimum design performance are also discussed.

• Research Organization: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5769477
• Journal Information: J. Vac. Sci. Technol., A; (United States), Vol. 1:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
INTOR TOKAMAK
LIMITERS
DESIGN
OPTIMIZATION
PDX DEVICES
CALORIMETRY
CHARGED-PARTICLE TRANSPORT
ENERGY TRANSPORT
LANGMUIR PROBE
PLASMA
TFTR REACTORS
ONE-DIMENSIONAL CALCULATIONS
DIVERTORS
ELECTRIC PROBES
PROBES
RADIATION TRANSPORT
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700104* - Fusion Energy- Plasma Research- Plasma Kinetics-Experimental- (-1987)
700209 - Fusion Power Plant Technology- Component Development & Materials Testing