Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations
This paper describes the use of nonlinear gyrokinetic simulations to assess the feasibility of a new correlation electron cyclotron emission (CECE) diagnostic that has been proposed for the Alcator C-Mod tokamak (Marmar et al 2009 Nucl. Fusion 49 104014). This work is based on a series of simulation...
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2013
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| Online Access: | http://hdl.handle.net/1721.1/81466 https://orcid.org/0000-0003-2951-9749 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-0026-6939 |
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| author | Mikkelsen, David Candy, J. Waltz, R. E. White, Anne E. Howard, Nathaniel Thomas Greenwald, Martin J. |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Mikkelsen, David Candy, J. Waltz, R. E. White, Anne E. Howard, Nathaniel Thomas Greenwald, Martin J. |
| author_sort | Mikkelsen, David |
| collection | MIT |
| description | This paper describes the use of nonlinear gyrokinetic simulations to assess the feasibility of a new correlation electron cyclotron emission (CECE) diagnostic that has been proposed for the Alcator C-Mod tokamak (Marmar et al 2009 Nucl. Fusion 49 104014). This work is based on a series of simulations performed with the GYRO code (Candy and Waltz 2003 J. Comput. Phys. 186 545). The simulations are used to predict ranges of fluctuation level, peak poloidal wavenumber and radial correlation length of electron temperature fluctuations in the core of the plasma. The impact of antenna pattern and poloidal viewing location on measurable turbulence characteristics is addressed using synthetic diagnostics. An upper limit on the CECE sample volume size is determined. The modeling results show that a CECE diagnostic capable of measuring transport-relevant, long-wavelength (k[subscript θ]ρ[subscript s] < 0.5) electron temperature fluctuations is feasible at Alcator C-Mod. |
| first_indexed | 2024-09-23T12:18:47Z |
| format | Article |
| id | mit-1721.1/81466 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:18:47Z |
| publishDate | 2013 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/814662022-10-01T08:56:07Z Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations Mikkelsen, David Candy, J. Waltz, R. E. White, Anne E. Howard, Nathaniel Thomas Greenwald, Martin J. Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Plasma Science and Fusion Center White, Anne E. Howard, Nathaniel Thomas Greenwald, Martin J. This paper describes the use of nonlinear gyrokinetic simulations to assess the feasibility of a new correlation electron cyclotron emission (CECE) diagnostic that has been proposed for the Alcator C-Mod tokamak (Marmar et al 2009 Nucl. Fusion 49 104014). This work is based on a series of simulations performed with the GYRO code (Candy and Waltz 2003 J. Comput. Phys. 186 545). The simulations are used to predict ranges of fluctuation level, peak poloidal wavenumber and radial correlation length of electron temperature fluctuations in the core of the plasma. The impact of antenna pattern and poloidal viewing location on measurable turbulence characteristics is addressed using synthetic diagnostics. An upper limit on the CECE sample volume size is determined. The modeling results show that a CECE diagnostic capable of measuring transport-relevant, long-wavelength (k[subscript θ]ρ[subscript s] < 0.5) electron temperature fluctuations is feasible at Alcator C-Mod. United States. Dept. of Energy (DE-FC02-C99ER54512-CMOD) 2013-10-21T18:39:42Z 2013-10-21T18:39:42Z 2011-09 2011-08 Article http://purl.org/eprint/type/JournalArticle 0741-3335 1361-6587 http://hdl.handle.net/1721.1/81466 White, A E, N T Howard, D R Mikkelsen, M Greenwald, J Candy, and R E Waltz. “Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations.” Plasma Physics and Controlled Fusion 53, no. 11 (November 1, 2011): 115003. https://orcid.org/0000-0003-2951-9749 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-0026-6939 en_US http://dx.doi.org/10.1088/0741-3335/53/11/115003 Plasma Physics and Controlled Fusion Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc/3.0 application/pdf IOP Publishing MIT Web Domain |
| spellingShingle | Mikkelsen, David Candy, J. Waltz, R. E. White, Anne E. Howard, Nathaniel Thomas Greenwald, Martin J. Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title | Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title_full | Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title_fullStr | Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title_full_unstemmed | Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title_short | Feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| title_sort | feasibility study for a correlation electron cyclotron emission turbulence diagnostic based on nonlinear gyrokinetic simulations |
| url | http://hdl.handle.net/1721.1/81466 https://orcid.org/0000-0003-2951-9749 https://orcid.org/0000-0002-4438-729X https://orcid.org/0000-0002-0026-6939 |
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