Using Convolutional Neural Networks to detect Edge Localized Modes in DIII-D from Doppler Backscattering measurements

Autor: Teo, N. Q. X., Hall-Chen, V. H., Barada, K., Ng, R. J. H., Gu, L., Yeoh, A. K., Pratt, Q. T., Garbet, X., Rhodes, T. L.

In H-mode tokamak plasmas, the plasma is sometimes ejected beyond the edge transport barrier. These events are known as edge localized modes (ELMs). ELMs cause a loss of energy and damage the vessel walls. Understanding the physics of ELMs and by ext

Externí odkaz: http://arxiv.org/abs/2406.01464

Interpreting Radial Correlation Doppler Reflectometry using Gyrokinetic Simulations

Autor: Ruiz, J. Ruiz, Parra, F. I., Hall-Chen, V. H., Christen, N., Barnes, M., Candy, J., Garcia, J., Giroud, C., Guttenfelder, W., Hillesheim, J. C., Holland, C., Howard, N. T., Ren, Y., White, A. E., contributors., JET

A linear response, local model for the DBS amplitude applied to gyrokinetic simulations shows that radial correlation Doppler reflectometry measurements (RCDR, Schirmer et al., Plasma Phys. Control. Fusion 49 1019 (2007)) are not sensitive to the ave

Externí odkaz: http://arxiv.org/abs/2201.06324

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Design of a low frequency, density profile reflectometer system for the MAST-U spherical tokamak.

Autor: Rhodes TL; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Peebles WA; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Zeng L; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Hall-Chen V; Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), Singapore., Ronald K; Strathclyde University, Glasgow, United Kingdom., Kubota S; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Meng Y; NMC, A*STAR, Singapore., Lantsov R; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Michael CM; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Crocker NA; Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA., Scannell R; Culham Centre for Fusion Energy, UKAEA, Culham, United Kingdom.

Publikováno v: The Review of scientific instruments [Rev Sci Instrum] 2024 Aug 01; Vol. 95 (8).

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