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

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Princeton Plasma Physics Laboratory, Princeton, New Jersey 08544
OSTI Identifier:
5769477
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Journal Article
Journal Name:
J. Vac. Sci. Technol., A; (United States)
Additional Journal Information:
Journal Volume: 1:2
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Ulrickson, M, and Post, D E. Particle and energy transport in the plasma scrape-off zone and its impact on limiter design. United States: N. p., 1983. Web. doi:10.1116/1.572148.
Ulrickson, M, & Post, D E. Particle and energy transport in the plasma scrape-off zone and its impact on limiter design. United States. https://doi.org/10.1116/1.572148
Ulrickson, M, and Post, D E. 1983. "Particle and energy transport in the plasma scrape-off zone and its impact on limiter design". United States. https://doi.org/10.1116/1.572148.
@article{osti_5769477,
title = {Particle and energy transport in the plasma scrape-off zone and its impact on limiter design},
author = {Ulrickson, M and Post, D E},
abstractNote = {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.},
doi = {10.1116/1.572148},
url = {https://www.osti.gov/biblio/5769477}, journal = {J. Vac. Sci. Technol., A; (United States)},
number = ,
volume = 1:2,
place = {United States},
year = {Fri Apr 01 00:00:00 EST 1983},
month = {Fri Apr 01 00:00:00 EST 1983}
}