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Title: An Edge Rotation and Temperature Diagnostic on NSTX

Abstract

A new diagnostic for the National Spherical Torus Experiment (NSTX) is described whose function is to measure ion rotation and temperature at the plasma edge. The diagnostic is sensitive to C III, C IV, and He II intrinsic emission, covering a radial region of 15 cm at the extreme edge of the outboard midplane. Thirteen chords are distributed between toroidal and poloidal views, allowing the toroidal and poloidal rotation and temperature of the plasma edge to be simultaneously measured with 10 ms resolution. Combined with the local pressure gradient and the EFIT code reconstructed magnetic field profile, the edge flow gives a measure of the local radial electric field.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
814754
Report Number(s):
PPPL-3862
TRN: US0304294
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 29 Aug 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NSTX DEVICE; ELECTRIC FIELDS; MAGNETIC FIELDS; PRESSURE GRADIENTS; DIAGNOSTIC TECHNIQUES; ELECTRON TEMPERATURE; ION TEMPERATURE; TEMPERATURE MEASUREMENT; DIAGNOSTICS; EDGE PLASMA; IONIZATION AND RECOMBINATION; SPECTRAL LINES

Citation Formats

T.M. Biewer, R.E. Bell, R. Feder, D.W. Johnson, and R.W. Palladino. An Edge Rotation and Temperature Diagnostic on NSTX. United States: N. p., 2003. Web. doi:10.2172/814754.
T.M. Biewer, R.E. Bell, R. Feder, D.W. Johnson, & R.W. Palladino. An Edge Rotation and Temperature Diagnostic on NSTX. United States. doi:10.2172/814754.
T.M. Biewer, R.E. Bell, R. Feder, D.W. Johnson, and R.W. Palladino. Fri . "An Edge Rotation and Temperature Diagnostic on NSTX". United States. doi:10.2172/814754. https://www.osti.gov/servlets/purl/814754.
@article{osti_814754,
title = {An Edge Rotation and Temperature Diagnostic on NSTX},
author = {T.M. Biewer and R.E. Bell and R. Feder and D.W. Johnson and R.W. Palladino},
abstractNote = {A new diagnostic for the National Spherical Torus Experiment (NSTX) is described whose function is to measure ion rotation and temperature at the plasma edge. The diagnostic is sensitive to C III, C IV, and He II intrinsic emission, covering a radial region of 15 cm at the extreme edge of the outboard midplane. Thirteen chords are distributed between toroidal and poloidal views, allowing the toroidal and poloidal rotation and temperature of the plasma edge to be simultaneously measured with 10 ms resolution. Combined with the local pressure gradient and the EFIT code reconstructed magnetic field profile, the edge flow gives a measure of the local radial electric field.},
doi = {10.2172/814754},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 29 00:00:00 EDT 2003},
month = {Fri Aug 29 00:00:00 EDT 2003}
}

Technical Report:

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