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Integrated package of electron cyclotron emission imaging data processing and forward modeling in OMFIT

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/5.0040448· OSTI ID:1777988
 [1];  [2];  [2];  [3];  [3];  [4];  [2];  [2];  [5];  [6];  [6];  [6];  [2]
  1. Univ. of California, Davis, CA (United States); University of California, Davis
  2. Univ. of California, Davis, CA (United States)
  3. General Atomics, San Diego, CA (United States)
  4. Southwestern Inst. of Physics, Sichuan (China)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
An Electron Cyclotron Emission Imaging (ECEI) data analysis module has been developed for the OMFIT platform to accommodate the needs of users at the DIII-D tokamak for physics applications. The user can easily access the ECEI spatial observation windows in the plasma that are calculated based on the automatically retrieved hardware setup and available DIII-D equilibria, perform spectral analysis, and make 2D electron temperature fluctuation images. The module provides a powerful data post processing package for extracting important physics parameters from the 2D measurements, including the radial structure and poloidal mode number of Alfven Eigenmodes, as well as the frequency-vs-wavenumber dispersion relationship of broadband MHD. Lastly, the module propagates characterized synthetic fluctuations for the user, so one can perform forward modeling tasks with simple analytical fluctuations.
Research Organization:
Univ. of California, Davis, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
FC02-04ER54698; FG02-99ER54531; SC0017992
OSTI ID:
1777988
Alternate ID(s):
OSTI ID: 1772160
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 3 Vol. 92; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (20)

Advancements in electron cyclotron emission imaging demonstrated by the TEXTOR ECEI diagnostic upgrade journal September 2009
Synthetic diagnostics platform for fusion plasmas (invited) journal August 2016
Synthetic diagnostic for electron cyclotron emission imaging journal October 2018
Core temperature fluctuations and related heat transport in the Texas Experimental Tokamak‐Upgrade journal March 1995
Mode structure of turbulent electron temperature fluctuations in the Texas Experimental Tokamak Upgrade journal December 1998
Improved accuracy in the estimation of the tearing mode stability parameters (Δ′ and w c ) using 2D ECEI data in KSTAR journal June 2014
Integrated modeling applications for tokamak experiments with OMFIT journal July 2015
Rotational shear effects on edge harmonic oscillations in DIII-D quiescent H-mode discharges journal June 2016
Boundary perturbations coupled to core 3/2 tearing modes on the DIII-D tokamak journal July 2013
Velocimetry analysis of type-I edge localized mode precursors in ASDEX Upgrade journal February 2014
Experimental characterization of the effect of E × B shear on edge-harmonic oscillation mode structure journal June 2019
Millimeter-wave imaging of magnetic fusion plasmas: technology innovations advancing physics understanding journal March 2017
Bifurcation of quiescent H-mode to a wide pedestal regime in DIII-D and advances in the understanding of edge harmonic oscillations journal June 2017
Multiscale interaction between a large scale magnetic island and small scale turbulence journal October 2017
Validation of the ‘full reconnection model’ of the sawtooth instability in KSTAR journal April 2018
Verification and validation of integrated simulation of energetic particles in fusion plasmas journal April 2019
Validation of Alfvén eigenmode simulations on DIII-D and projection for CFETR scenario journal April 2019
Enhanced radial energy transport induced by radially curved Alfvén eigenmode wavefronts journal July 2019
Microwave Imaging Reflectometry for the study of Edge Harmonic Oscillations on DIII-D journal October 2015
Nonlinear Interaction of Edge-Localized Modes and Turbulent Eddies in Toroidal Plasma under n = 1 Magnetic Perturbation journal August 2016

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