Zobrazeno 1 - 10
of 57
pro vyhledávání: '"J.-W. Juhn"'
Autor:
Minwoo Kim, G. Shin, J. Lee, W.H. Ko, H. Han, S.-H. Hahn, S.K. Kim, S.M. Yang, R. Shousha, H.S. Kim, J.-W. Juhn, G.Y. Park, E. Kolemen
Publikováno v:
Nuclear Fusion, Vol 63, Iss 8, p 086032 (2023)
The integrated Resonant Magnetic Perturbation (RMP)-based Edge-Localized Mode (ELM)-crash-control process aims to enhance the plasma performance during the RMP-driven ELM crash suppression, where the RMP induces an unwanted confinement degradation. I
Externí odkaz:
https://doaj.org/article/895b0b3d2a3c4c05b6698eeace74b889
Autor:
Y. Lee, P.C. de Vries, P. Aleynikov, J. Lee, Y.-S. Lee, H.-T. Kim, A.B. Mineev, K.-D. Lee, J.-G. Bak, J.-W. Juhn, Y.-S. Na
Publikováno v:
Nuclear Fusion, Vol 63, Iss 10, p 106011 (2023)
Understanding the formation of start-up runaway electrons (REs) is essential to ensure successful plasma initiation in ITER. The design of ITER start-up scenarios requires not only predictive simulations but also a validation of assumptions. The obje
Externí odkaz:
https://doaj.org/article/53abbe3b658d4b28a9cfe9ac9c6cd488
Autor:
Minwoo Kim, G. Shin, J. Lee, W.H. Ko, H. Han, S.-H. Hahn, S.K. Kim, S.M. Yang, R. Shousha, H.S. Kim, J.-W. Juhn, G.Y. Park, E. Kolemen
Publikováno v:
Nuclear Fusion, Vol 63, Iss 12, p 129501 (2023)
Externí odkaz:
https://doaj.org/article/c310467eb5d84ef0b7aa9180e2442990
Autor:
Dong-Geun Lee, Kwan Chul Lee, J.-W. Juhn, Jae-seok Lee, Jayhyun Kim, SooHwan Park, Michael Lehnen, Yong-Hwa Park, Jae-Hak Jeong, Jaebeom Yim, Y.-C. Ghim
Publikováno v:
Nuclear Fusion, Vol 64, Iss 1, p 016024 (2023)
Dispersion interferometers (DI) are widely used to measure line integrated electron densities in many fusion devices. A recent development of a heterodyne single crystal DI (SCDI) with a laser wavelength of 1064 nm (Lee et al 2021 Rev. Sci. Instrum.
Externí odkaz:
https://doaj.org/article/9dda6f24262f4b9f94314fdca9dc9681
Publikováno v:
The Review of scientific instruments. 92(4)
Major parts of an IR–visible two-color interferometer (TCI) on KSTAR have been upgraded for the multi-chord operation: (1) a diode-pumped-solid-state (DPSS) laser (660 nm) replacing the former HeNe laser (633 nm), (2) vacuum-compatible vibration is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b91e4c4687bb0bfb66566879f7e3a693
https://pubmed.ncbi.nlm.nih.gov/34243393
https://pubmed.ncbi.nlm.nih.gov/34243393
Autor:
Giwook Shin, H. Han, M. Kim, S.-H. Hahn, W.H. Ko, G.Y. Park, Y.H. Lee, M.W. Lee, M.H. Kim, J.-W. Juhn, D.C. Seo, J. Jang, H.S. Kim, J.H. Lee, H.J. Kim
Publikováno v:
Nuclear Fusion. 62:026035
Suppression or mitigation of edge-localized mode (ELM) crashes is necessary for ITER. The strategy to suppress all the ELM crashes by the resonant magnetic perturbation (RMP) should be applied as soon as the first low-to-high confinement (L–H) tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2abfd02359471a1743ffe1c05a03fdd4
https://doi.org/10.1088/1741-4326/ac412d
https://doi.org/10.1088/1741-4326/ac412d
Publikováno v:
Fusion Engineering and Design. 129:320-325
The Korea Superconducting Tokamak Advanced Research (KSTAR) has several diagnostics devices, including a millimeter-wave interferometer (MMWI), far-infrared interferometer (FIR), two-color interferometer, etc., for measuring plasma electron densities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a8532b3f4f716b37309e94c493032f7
https://doi.org/10.1016/j.fusengdes.2018.02.037
https://doi.org/10.1016/j.fusengdes.2018.02.037
Publikováno v:
Fusion Engineering and Design. 129:341-344
Method for automatic detection of L-H transition using Support Vector Machine (SVM), a popular tool of supervised machine learning tools, has been evaluated in order to improve plasma density control in KSTAR. Through the SVM, a nonlinear classifier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::741b20173d6311cb66a597f7c65c2599
https://doi.org/10.1016/j.fusengdes.2017.12.011
https://doi.org/10.1016/j.fusengdes.2017.12.011
Akademický článek
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Autor:
J.H. Lee, S.H. Seo, H. Han, Y.W. Cho, J. W. Juhn, Y.M. Jeon, S.W. Yoon, J. Kang, S.-H. Hahn, W.H. Ko, J. Ko, K.D. Lee, M.H. Woo, H.S. Kim, M.W. Lee, J. Chung
Publikováno v:
Nuclear Fusion. 61:126051
We explore the inboard-limited internal transport barrier (ITB) as an alternative advanced operation scenario for KSTAR. This paper presents in detail the progress of the ITB experiment at KSTAR. In an earlier study, the ITB formed in both ion and el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ad409e21d862c64555af6d22adbd178
https://doi.org/10.1088/1741-4326/ac3366
https://doi.org/10.1088/1741-4326/ac3366