Please use this identifier to cite or link to this item:
http://arks.princeton.edu/ark:/88435/dsp01r207ts405
Title: | Inversion technique to obtain local ion temperature profiles for an axisymmetric plasma with toroidal and radial velocities |
Contributors: | Bell, Ronald E. U. S. Department of Energy |
Keywords: | tomographic inversion ion temperature radial velocity plasma spectroscopy magnetic reconnection merging compression |
Issue Date: | Feb-2021 |
Publisher: | Princeton Plasma Physics Laboratory, Princeton University |
Related Publication: | Plasma Physics and Controlled Fusion |
Abstract: | A matrix inversion technique is derived to calculate local ion temperature from line-integrated measurements of an extended emission source in an axisymmetric plasma which exactly corrects for both toroidal velocity and radial velocity components. Local emissivity and toroidal velocity can be directly recovered from line-integrated spectroscopic measurements, but an independent measurement of the radial velocity is necessary to complete the temperature inversion. The extension of this technique to handle the radial velocity is relevant for magnetic reconnection and merging compression devices where temperature inversion from spectroscopic measurements is desired. A simulation demonstrates the effects of radial velocity on the determination of ion temperature. |
URI: | http://arks.princeton.edu/ark:/88435/dsp01r207ts405 |
Appears in Collections: | NSTX-U |
Files in This Item:
File | Description | Size | Format | |
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README.txt | 489 B | Text | View/Download | |
ARK_DATA.zip | 951.46 kB | Unknown | View/Download |
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