Noise suppression for MHD characterization with electron cyclotron emission imaging 1D technique

Yu, G.; Kramer, G. J.; Zhu, Y.; Li, X.; Wang, Y.; Diallo, A.; Ren, Y.; Yu, J. H.; Chen, Y.; Liu, X.; Cao, J.; Zhao, B.; Austin, M.; Luhmann, N. C.

doi:10.1088/1361-6587/abe9f2

Title: Noise suppression for MHD characterization with electron cyclotron emission imaging 1D technique

Journal Article · Fri Mar 19 00:00:00 EDT 2021 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/1361-6587/abe9f2· OSTI ID:1804654

^[1];

^[2]; Zhu, Y. ^[1]; Li, X. ^[1]; Wang, Y. ^[1];

^[2]; Ren, Y. ^[2]; Yu, J. H. ^[1]; Chen, Y. ^[1]; Liu, X. ^[1]; Cao, J. ^[1]; Zhao, B. ^[3]; Austin, M. ^[3]; Luhmann, N. C. ^[1]

Univ. of California, Davis, CA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of Texas, Austin, TX (United States)

Significant noise suppression for magnetohydrodynamics (MHD) mode characterization in the spatial and spectral domain is achieved by processing two-dimensional (2D) electron cyclotron emission imaging (ECEI) data with a one-dimensional (1D) ECEI technique using a short time window ($$1\;{\text{ms}}$$). The technique is applied to detect toroidal Alfven eigenmodes (TAEs) in the temporal spectrum and fit their radial envelope using the data from the DIII-D tokamak W-band 2D ECEI system. Using the data length (time window) of only 1 $${\text{ms}}$$, the 1D ECEI can clearly detect the TAEs (~100 $${\text{kHz}}$$) on the spectrum, while similar spectrum quality requires ~10 $${\text{ms}}$$ data length with the cross power spectrum between two midplane ECEI channels. The 1D ECEI technique also effectively avoids biased fitting when resolving the fine structure of the TAE's radial envelope. The radially spatial resolution of 1D ECEI is constrained by the finite ECE radiation volume of the ECEI receiver. Here, with forward radiation modeling, we find the DIII-D ECEI system can sensitively measure the even parity MHD activities, for which the mode width is >15 mm, and tearing modes (odd parity MHD activities), for which the island full width is >30 mm.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Univ. of California, Davis, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); Chinese Scholarship Council (CSC)

Grant/Contract Number:: FC02-04ER54698; FG02-97ER54415; FG02-99ER54531

OSTI ID:: 1804654

Alternate ID(s):: OSTI ID: 1777936

Journal Information:: Plasma Physics and Controlled Fusion, Vol. 63, Issue 5; ISSN 0741-3335

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

References (57)

Complete Suppression of Neoclassical Tearing Modes with Current Drive at the Electron-Cyclotron-Resonance Frequency in ASDEX Upgrade Tokamak Gantenbein, G.; Zohm, H.; Giruzzi, G. Physical Review Letters, Vol. 85, Issue 6 https://doi.org/10.1103/PhysRevLett.85.1242	journal	August 2000
Reconstruction of current profile parameters and plasma shapes in tokamaks Lao, L. L.; St. John, H.; Stambaugh, R. D. Nuclear Fusion, Vol. 25, Issue 11 https://doi.org/10.1088/0029-5515/25/11/007	journal	November 1985
Noise temperature improvement for magnetic fusion plasma millimeter wave imaging systems Lai, J.; Domier, C. W.; Luhmann, N. C. Review of Scientific Instruments, Vol. 85, Issue 3 https://doi.org/10.1063/1.4866652	journal	March 2014
The electron cyclotron emission imaging system on EAST with continuous large observation area Gao, B. X.; Xie, J. L.; Mao, Z. Journal of Instrumentation, Vol. 13, Issue 02 https://doi.org/10.1088/1748-0221/13/02/P02009	journal	February 2018
Nonlinear Interaction of Edge-Localized Modes and Turbulent Eddies in Toroidal Plasma under $n = 1$ Magnetic Perturbation Lee, Jaehyun; Yun, Gunsu S.; Choi, Minjun J. Physical Review Letters, Vol. 117, Issue 7 https://doi.org/10.1103/PhysRevLett.117.075001	journal	August 2016
Optics design for J-TEXT ECE imaging with field curvature adjustment lens Zhu, Y.; Zhao, Z.; Liu, W. D. Review of Scientific Instruments, Vol. 85, Issue 11 https://doi.org/10.1063/1.4893352	journal	November 2014
W-band system-on-chip electron cyclotron emission imaging system on DIII-D Zhu, Y.; Yu, J. -H.; Yu, G. Review of Scientific Instruments, Vol. 91, Issue 9 https://doi.org/10.1063/5.0018082	journal	September 2020
Improved accuracy in the estimation of the tearing mode stability parameters (Δ′ and w _c ) using 2D ECEI data in KSTAR Choi, Minjun J.; Yun, Gunsu S.; Lee, Woochang Nuclear Fusion, Vol. 54, Issue 8 https://doi.org/10.1088/0029-5515/54/8/083010	journal	June 2014
Synthetic diagnostic for electron cyclotron emission imaging Chen, M.; Zhu, Y.; Luo, C. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5035426	journal	October 2018
Field-Line Localized Destabilization of Ballooning Modes in Three-Dimensional Tokamaks Willensdorfer, M.; Cote, T. B.; Hegna, C. C. Physical Review Letters, Vol. 119, Issue 8 https://doi.org/10.1103/PhysRevLett.119.085002	journal	August 2017
Two-Dimensional Visualization of Growth and Burst of the Edge-Localized Filaments in KSTAR $H$ -Mode Plasmas Yun, G. S.; Lee, W.; Choi, M. J. Physical Review Letters, Vol. 107, Issue 4 https://doi.org/10.1103/PhysRevLett.107.045004	journal	July 2011
Observation of an Energetic-Particle-Driven Instability in the Wall-Stabilized High- $β$ Plasmas in the JT-60U Tokamak Matsunaga, G.; Aiba, N.; Shinohara, K. Physical Review Letters, Vol. 103, Issue 4 https://doi.org/10.1103/PhysRevLett.103.045001	journal	July 2009
Optics design for Electron Cyclotron Emission Imaging system on J-TEXT Ma, X. D.; Yang, Z. J.; Zhu, Y. L. Journal of Instrumentation, Vol. 11, Issue 05 https://doi.org/10.1088/1748-0221/11/05/P05022	journal	May 2016
Chapter 3: Microwave Diagnostics Luhmann, N. C.; Bindslev, H.; Park, H. Fusion Science and Technology, Vol. 53, Issue 2 https://doi.org/10.13182/fst08-a1675	journal	February 2008
New Interpretation of Alpha-Particle-Driven Instabilities in Deuterium-Tritium Experiments on the Tokamak Fusion Test Reactor Nazikian, R.; Kramer, G. J.; Cheng, C. Z. Physical Review Letters, Vol. 91, Issue 12 https://doi.org/10.1103/PhysRevLett.91.125003	journal	September 2003
The general optics structure of millimeter-wave imaging diagnostic on TOKAMAK Zhu, Y.; Xie, J.; Liu, W. D. Journal of Instrumentation, Vol. 11, Issue 01 https://doi.org/10.1088/1748-0221/11/01/P01004	journal	January 2016
Multiscale interaction between a large scale magnetic island and small scale turbulence Choi, M. J.; Kim, J.; Kwon, J. -M. Nuclear Fusion, Vol. 57, Issue 12 https://doi.org/10.1088/1741-4326/aa86fe	journal	October 2017
ECE imaging array diagnostic development of TEXT‐U Hsia, R. P.; Geck, W. R.; Cheng, S. Review of Scientific Instruments, Vol. 66, Issue 1 https://doi.org/10.1063/1.1146239	journal	January 1995
Deep convolutional neural networks for multi-scale time-series classification and application to tokamak disruption prediction using raw, high temporal resolution diagnostic data Churchill, R. M.; Tobias, B.; Zhu, Y. Physics of Plasmas, Vol. 27, Issue 6 https://doi.org/10.1063/1.5144458	journal	June 2020
Experimental observation of multi-scale interactions among kink /tearing modes and high-frequency fluctuations in the HL-2A core NBI plasmas Chen, W.; Jiang, M.; Xu, Y. Nuclear Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/1741-4326/aa7eee	journal	August 2017
Continuum damping of high-mode-number toroidal Alfvén waves Rosenbluth, M. N.; Berk, H. L.; Van Dam, J. W. Physical Review Letters, Vol. 68, Issue 5 https://doi.org/10.1103/PhysRevLett.68.596	journal	February 1992
Tearing mode in the cylindrical tokamak Furth, H. P. Physics of Fluids, Vol. 16, Issue 7 https://doi.org/10.1063/1.1694467	journal	January 1973
Millimeter-wave imaging of magnetic fusion plasmas: technology innovations advancing physics understanding Wang, Y.; Tobias, B.; Chang, Y. -T. Nuclear Fusion, Vol. 57, Issue 7 https://doi.org/10.1088/1741-4326/aa5e30	journal	March 2017
Development of KSTAR ECE imaging system for measurement of temperature fluctuations and edge density fluctuations Yun, G. S.; Lee, W.; Choi, M. J. Review of Scientific Instruments, Vol. 81, Issue 10 https://doi.org/10.1063/1.3483209	journal	October 2010
Data acquisition and control system for the ECE imaging diagnostic on the EAST tokamak Luo, C.; Lan, T.; Zhu, Y. Journal of Instrumentation, Vol. 12, Issue 06 https://doi.org/10.1088/1748-0221/12/06/T06004	journal	June 2017
Enhanced radial energy transport induced by radially curved Alfvén eigenmode wavefronts Kramer, G. J.; Tobias, B. J.; Turnbull, A. Nuclear Fusion, Vol. 59, Issue 9 https://doi.org/10.1088/1741-4326/ab2ee3	journal	July 2019
Analysis of the structure of neoclassical tearing modes in ASDEX Upgrade Meskat, J. P.; Zohm, H.; Gantenbein, G. Plasma Physics and Controlled Fusion, Vol. 43, Issue 10 https://doi.org/10.1088/0741-3335/43/10/304	journal	September 2001
New Trends in Microwave Imaging Diagnostics and Application to Burning Plasma Zhu, Yilun; Yu, Jo-Han; Chen, Ming IEEE Transactions on Plasma Science, Vol. 47, Issue 5 https://doi.org/10.1109/TPS.2019.2911476	journal	May 2019
Liquid crystal polymer receiver modules for electron cyclotron emission imaging on the DIII-D tokamak Zhu, Y.; Ye, Y.; Yu, J-H. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5035373	journal	October 2018
Integrated modeling applications for tokamak experiments with OMFIT Meneghini, O.; Smith, S. P.; Lao, L. L. Nuclear Fusion, Vol. 55, Issue 8 https://doi.org/10.1088/0029-5515/55/8/083008	journal	July 2015
ECE-imaging of the H-mode pedestal (invited) Tobias, B. J.; Austin, M. E.; Boom, J. E. Review of Scientific Instruments, Vol. 83, Issue 10 https://doi.org/10.1063/1.4733742	journal	October 2012
Electron cyclotron emission imaging diagnostic on TEXTOR Deng, B. H.; Domier, C. W.; Luhmann, N. C. Review of Scientific Instruments, Vol. 72, Issue 1 https://doi.org/10.1063/1.1316748	journal	January 2001
Velocimetry analysis of type-I edge localized mode precursors in ASDEX Upgrade Manz, P.; Boom, J. E.; Wolfrum, E. Plasma Physics and Controlled Fusion, Vol. 56, Issue 3 https://doi.org/10.1088/0741-3335/56/3/035010	journal	February 2014
Commissioning of electron cyclotron emission imaging instrument on the DIII-D tokamak and first data Tobias, B.; Domier, C. W.; Liang, T. Review of Scientific Instruments, Vol. 81, Issue 10 https://doi.org/10.1063/1.3460456	journal	October 2010
Helical temperature perturbations associated with tearing modes in tokamak plasmas Fitzpatrick, Richard Physics of Plasmas, Vol. 2, Issue 3 https://doi.org/10.1063/1.871434	journal	March 1995
2D electron cyclotron emission imaging at ASDEX Upgrade (invited) Classen, I. G. J.; Boom, J. E.; Suttrop, W. Review of Scientific Instruments, Vol. 81, Issue 10 https://doi.org/10.1063/1.3483214	journal	October 2010
Design of the 2D electron cyclotron emission imaging instrument for the J-TEXT tokamak Pan, X. M.; Yang, Z. J.; Ma, X. D. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959875	journal	August 2016
Suppression of Trapped Energetic Ions Driven Resistive Interchange Modes with Electron Cyclotron Heating in a Helical Plasma Du, X. D.; Toi, K.; Ohdachi, S. Physical Review Letters, Vol. 118, Issue 12 https://doi.org/10.1103/PhysRevLett.118.125001	journal	March 2017
Quiescent H-mode plasmas in the DIII-D tokamak Burrell, K. H.; Austin, M. E.; Brennan, D. P. Plasma Physics and Controlled Fusion, Vol. 44, Issue 5A https://doi.org/10.1088/0741-3335/44/5A/325	journal	April 2002
Localized modulation of turbulence by m / n = 1/1 magnetic islands in the HL-2A tokamak Jiang, M.; Xu, Y.; Chen, W. Nuclear Fusion, Vol. 59, Issue 6 https://doi.org/10.1088/1741-4326/ab0bd4	journal	May 2019
Quasi-3D electron cyclotron emission imaging on J-TEXT Zhao, Zhenling; Zhu, Yilun; Tong, Li Plasma Science and Technology, Vol. 19, Issue 9 https://doi.org/10.1088/2058-6272/aa750d	journal	July 2017
Low-noise heterodyne receiver for electron cyclotron emission imaging and microwave imaging reflectometry Tobias, B.; Domier, C. W.; Luhmann, N. C. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959273	journal	July 2016
A Review of ECE Correlation Radiometry Techniques for Detection of Core Electron Temperature Fluctuations Watts, Christopher Fusion Science and Technology, Vol. 52, Issue 2 https://doi.org/10.13182/FST07-A1497	journal	August 2007
Quasi-optics design of the dual-array ECE imaging system on the EAST Tokamak Luo, C.; Tobias, B. J.; Gao, B. Journal of Instrumentation, Vol. 9, Issue 12 https://doi.org/10.1088/1748-0221/9/12/P12014	journal	December 2014
Non-perturbative measurement of cross-field thermal diffusivity reduction at the O-point of 2/1 neoclassical tearing mode islands in the DIII-D tokamak Bardóczi, L.; Rhodes, T. L.; Carter, T. A. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4948560	journal	May 2016
Radial Structure of Alfvén Eigenmodes in the DIII-D Tokamak through Electron-Cyclotron-Emission Measurements Van Zeeland, M. A.; Kramer, G. J.; Austin, M. E. Physical Review Letters, Vol. 97, Issue 13 https://doi.org/10.1103/PhysRevLett.97.135001	journal	September 2006
Verification and validation of integrated simulation of energetic particles in fusion plasmas Taimourzadeh, S.; Bass, E. M.; Chen, Y. Nuclear Fusion, Vol. 59, Issue 6 https://doi.org/10.1088/1741-4326/ab0c38	journal	April 2019
Rotational shear effects on edge harmonic oscillations in DIII-D quiescent H-mode discharges Chen, Xi; Burrell, K. H.; Ferraro, N. M. Nuclear Fusion, Vol. 56, Issue 7 https://doi.org/10.1088/0029-5515/56/7/076011	journal	June 2016
Impact of E × B shear flow on low-n MHD instabilities Chen, J. G.; Xu, X. Q.; Ma, C. H. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4984257	journal	May 2017
Millimeter-wave system-on-chip advancement for fusion plasma diagnostics Yu, J. -H.; Chang, Y. -T.; Lin, K. -Y. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5035559	journal	October 2018
Experimental characterization of the effect of E × B shear on edge-harmonic oscillation mode structure Chen, M.; Luo, C.; Zhu, Y. Plasma Physics and Controlled Fusion, Vol. 61, Issue 8 https://doi.org/10.1088/1361-6587/ab2174	journal	June 2019
Development of electron cyclotron emission imaging system on the HL-2A tokamak Jiang, M.; Shi, Z. B.; Che, S. Review of Scientific Instruments, Vol. 84, Issue 11 https://doi.org/10.1063/1.4828671	journal	November 2013
Nonambipolar Transport due to Electrons with 3D Resistive Response in the KSTAR Tokamak Yang, S. M.; Park, J. -K.; Na, Yong-Su Physical Review Letters, Vol. 123, Issue 9 https://doi.org/10.1103/PhysRevLett.123.095001	journal	August 2019
Millimeter-wave imaging diagnostics systems on the EAST tokamak (invited) Zhu, Y. L.; Xie, J. L.; Yu, C. X. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959162	journal	August 2016
Boundary perturbations coupled to core 3/2 tearing modes on the DIII-D tokamak Tobias, B.; Yu, L.; Domier, C. W. Plasma Physics and Controlled Fusion, Vol. 55, Issue 9 https://doi.org/10.1088/0741-3335/55/9/095006	journal	July 2013
Influence of m / n = 2/1 magnetic islands on perpendicular flows and turbulence in HL-2A Ohmic plasmas Jiang, M.; Zhong, W. L.; Xu, Y. Nuclear Fusion, Vol. 58, Issue 2 https://doi.org/10.1088/1741-4326/aa9ac0	journal	December 2017
Synthetic diagnostics platform for fusion plasmas (invited) Shi, L.; Valeo, E. J.; Tobias, B. J. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4961553	journal	August 2016

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