Reconstruction of Detached Divertor Plasma Conditions in DIII-D Using Spectroscopic and Probe Data
Year: 2004
Type: report
Abstract: For some divertor aspects, such as detached plasmas or the private flux zone, it is not clear that the controlling physics has been fully identified. This is a particular concern when the details of the plasma are likely to be important in modeling the problem--for example, modeling co-deposition in detached inner divertors. An empirical method of ''reconstructing'' the plasma based on direct experimental measurements may be useful in such situations. It is shown that a detached plasma in the outer divertor leg of DIII-D can be reconstructed reasonably well using spectroscopic and probe data as input to a simple onion-skin model and the Monte Carlo hydrogenic code, EIRENE. The calculated 2D distributions of n{sub e} and T{sub e} in the detached divertor were compared with direct measurements from the divertor Thomson scattering system, a diagnostic capability unique to DIII-D.
DOI: 10.2172/15011804
Authors: P Stangeby, M Fenstermacher
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1101028137, G1702950523, G3177268909, G5825074232, TURBULENCE AND TRANSPORT IN TOKAMAKS: A PROPOSAL FOR COLLAB ORATION BETWEEN THE UNIVERSITYOF TEXAS FUSION RESEARCH CENT ER AND THE MIT PLASMA FUSION, G6445123630, G660437508, THE DIII-D NATIONAL FUSION PROGRAM AND ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT, G8456466421, THE DIII-D FUSION RESEARCH PROGRAM AND ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT
OpenAlex ID: W4237920633