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Title: Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data

An extensive set of magnetic diagnostics in DIII-D is aimed at measuring non-axisymmetric "3D" features of tokamak plasmas, with typical amplitudes ~10 -3 to 10 -5 of the total magnetic field. We describe hardware and software techniques used at DIII-D to condition the individual signals and analysis to estimate the spatial structure from an ensemble of discrete measurements. Lastly, applications of the analysis include detection of non-rotating MHD instabilities, plasma control, and validation of MHD stability and 3D equilibrium models.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. General Atomics, San Diego, CA (United States)
  2. General Atomics, San Diego, CA (United States); U.S. Dept. of Energy, Germantown, MD (United States)
  3. Columbia Univ., New York, NY (United States)
  4. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Publication Date:
Grant/Contract Number:
AC02-09CH11466; FG02-04ER54761; FC02-04ER54698
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Research Org:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1309459
Alternate Identifier(s):
OSTI ID: 1371884

Strait, E. J., King, J. D., Hanson, J. M., and Logan, N. C.. Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data. United States: N. p., Web. doi:10.1063/1.4960419.
Strait, E. J., King, J. D., Hanson, J. M., & Logan, N. C.. Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data. United States. doi:10.1063/1.4960419.
Strait, E. J., King, J. D., Hanson, J. M., and Logan, N. C.. 2016. "Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data". United States. doi:10.1063/1.4960419. https://www.osti.gov/servlets/purl/1309459.
@article{osti_1309459,
title = {Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data},
author = {Strait, E. J. and King, J. D. and Hanson, J. M. and Logan, N. C.},
abstractNote = {An extensive set of magnetic diagnostics in DIII-D is aimed at measuring non-axisymmetric "3D" features of tokamak plasmas, with typical amplitudes ~10-3 to 10-5 of the total magnetic field. We describe hardware and software techniques used at DIII-D to condition the individual signals and analysis to estimate the spatial structure from an ensemble of discrete measurements. Lastly, applications of the analysis include detection of non-rotating MHD instabilities, plasma control, and validation of MHD stability and 3D equilibrium models.},
doi = {10.1063/1.4960419},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {2016},
month = {8}
}