Skip navigation
Please use this identifier to cite or link to this item:
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.
Appears in Collections:NSTX-U

Files in This Item:
File Description SizeFormat 
README.txt489 BTextView/Download
ARK_DATA.zip951.46 kBUnknownView/Download

Items in Dataspace are protected by copyright, with all rights reserved, unless otherwise indicated.