Hysteresis Relation between Turbulence and Temperature Modulation during the Heat Pulse Propagation into a Magnetic Island in DIII-D
Abstract
Here, the hysteresis relation between turbulence and temperature modulation during the heat pulse propagation into a magnetic island is studied for the first time in toroidal plasmas. Lissajous curves of the density fluctuation ($$\sim\atop{n}$$/n) and the electron temperature (Te) modulation show that the ($$\sim\atop{n}$$/n) propagation is faster than the heat pulse propagation near the O-point of the magnetic island. This faster $$\sim\atop{n}$$/n propagation is an experimental evidence of the turbulence spreading from X-point to the O-point of the magnetic island.
- Authors:
-
- National Inst. of Natural Sciences (NINS), Toki (Japan). National Inst. for Fusion Science (NIFS); Graduate Univ. for Advanced Studies (SOKENDAI), Toki (Japan)
- National Inst. for Quantum and Radiological Science and Technology (QST), Naka (Japan)
- General Atomics, San Diego, CA (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Univ. of Texas, Austin, TX (United States)
- Publication Date:
- Research Org.:
- General Atomics, San Diego, CA (United States). DIII-D National Fusion Facility (DIII-D)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; USDOE Office of Science (SC), Fusion Energy Sciences (FES); Japan Society for the Promotion of Science (JSPS)
- OSTI Identifier:
- 1459730
- Alternate Identifier(s):
- OSTI ID: 1441255
- Grant/Contract Number:
- FC02-04ER54698; JP15H02336; KEIN1111; KEIN1113; FG03-97ER54415; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: 24; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; magnetic confinement fusion; magnetic reconnection; plasma turbulence
Citation Formats
Ida, K., Kobayashi, T., Ono, M., Evans, T. E., McKee, G. R., and Austin, M. E. Hysteresis Relation between Turbulence and Temperature Modulation during the Heat Pulse Propagation into a Magnetic Island in DIII-D. United States: N. p., 2018.
Web. doi:10.1103/PhysRevLett.120.245001.
Ida, K., Kobayashi, T., Ono, M., Evans, T. E., McKee, G. R., & Austin, M. E. Hysteresis Relation between Turbulence and Temperature Modulation during the Heat Pulse Propagation into a Magnetic Island in DIII-D. United States. https://doi.org/10.1103/PhysRevLett.120.245001
Ida, K., Kobayashi, T., Ono, M., Evans, T. E., McKee, G. R., and Austin, M. E. Tue .
"Hysteresis Relation between Turbulence and Temperature Modulation during the Heat Pulse Propagation into a Magnetic Island in DIII-D". United States. https://doi.org/10.1103/PhysRevLett.120.245001. https://www.osti.gov/servlets/purl/1459730.
@article{osti_1459730,
title = {Hysteresis Relation between Turbulence and Temperature Modulation during the Heat Pulse Propagation into a Magnetic Island in DIII-D},
author = {Ida, K. and Kobayashi, T. and Ono, M. and Evans, T. E. and McKee, G. R. and Austin, M. E.},
abstractNote = {Here, the hysteresis relation between turbulence and temperature modulation during the heat pulse propagation into a magnetic island is studied for the first time in toroidal plasmas. Lissajous curves of the density fluctuation ($\sim\atop{n}$/n) and the electron temperature (Te) modulation show that the ($\sim\atop{n}$/n) propagation is faster than the heat pulse propagation near the O-point of the magnetic island. This faster $\sim\atop{n}$/n propagation is an experimental evidence of the turbulence spreading from X-point to the O-point of the magnetic island.},
doi = {10.1103/PhysRevLett.120.245001},
journal = {Physical Review Letters},
number = 24,
volume = 120,
place = {United States},
year = {Tue Jun 12 00:00:00 EDT 2018},
month = {Tue Jun 12 00:00:00 EDT 2018}
}
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Works referencing / citing this record:
Newly uncovered physics of MHD instabilities using 2-D electron cyclotron emission imaging system in toroidal plasmas
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On the interplay between MHD instabilities and turbulent transport in magnetically confined plasmas
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Interaction of magnetic islands with turbulent electron temperature fluctuations in DIII-D and in GENE nonlinear gyrokinetic simulations
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Summary of the 27th IAEA Fusion Energy Conference in the categories of EX/W, EX/D, and ICC
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Controlled neoclassical tearing mode (NTM) healing by fueling pellets and its impact on electron cyclotron current drive requirements for complete NTM stabilization
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The impact of edge radial electric fields on edge–scrape-off layer coupling in the TJ-II stellarator
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Gyrokinetic simulations of nonlinear interactions between magnetic islands and microturbulence
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