Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Dongcheol Seo"'
Autor:
Hyun-Seok Kim, YoungMu Jeon, Hyunsun Han, Kimin Kim, KwangPyo Kim, Heungsu Kim, Tongnyeol Rhee, Juhyung Kim, Junghee Kim, Dongcheol Seo, Eunnam Bang, Hee-Jae Ahn, Hyun-Sik Ahn, Jaesic Hong, Jinhyun Jeong, Jongdae Kong, Jong-Gu Kwak, Jongkook Jin, Jungyo Bak, Kaprai Park, Kyu-Dong Lee, Mi Joung, Sang Woo Kwag, Sang-Hee Hahn, SangKyeun Kim, Si-Woo Yoon, Sonjong Wang, Woong Chae Kim, Young-Ok Kim, KSTAR Teams
Publikováno v:
Nuclear Fusion, Vol 64, Iss 1, p 016033 (2023)
High-performance long-pulse plasma operation is essential for producing economically viable fusion energy in tokamak devices. To achieve such discharges in KSTAR, firstly, the rapid increase in the temperature of plasma-facing components was mitigate
Externí odkaz:
https://doaj.org/article/0e387a676a954a87883fa8aedb4b35a2
Autor:
Dongcheol Seo, Seungtae Oh, H. Y. Lee, R. Sano, Juhyeok Jang, Wonho Choe, Kiyofumi Mukai, Seokho Hong, Joohwan Hong, B.J. Peterson
Publikováno v:
Current Applied Physics. 18:461-468
Based on the two-dimensional radiation images obtained by an infrared imaging video bolometer (IRVB) with tangential view, the two dimensional radiation profiles of plasmas in KSTAR were reconstructed. The IRVB installed on KSTAR has a tangential vie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6af5814531699ca1605a911a1d054bf1
https://doi.org/10.1016/j.cap.2018.01.009
https://doi.org/10.1016/j.cap.2018.01.009
Publikováno v:
Fusion Engineering and Design. 123:838-842
To measure the effective ion charge Zeff profile, most plasma machines are equipped with a bremsstrahlung measurement system as a filter-scope diagnostic device. In Korean Superconducting Tokamak Advanced Research (KSTAR) machine, a new type of brems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e970d31af6859236a0cef579586204c9
https://doi.org/10.1016/j.fusengdes.2017.03.165
https://doi.org/10.1016/j.fusengdes.2017.03.165
Autor:
B.J. Peterson, Juhyeok Jang, Dongcheol Seo, Kiyofumi Mukai, Seungtae Oh, Jae Sun Park, Wonho Choe
Publikováno v:
Review of Scientific Instruments 89, 10E115 (2018); https://doi.org/10.1063/1.5038935
An InfraRed imaging Video Bolometer (IRVB) was installed on KSTAR in 2012 having a ∼2 μm × 7 cm × 9 cm Pt foil blackened with graphite and a 5 mm × 5 mm aperture located 7.65 cm from the foil with 16 × 12 channels and a time resolution of 10 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b992508b2230bf3c1c97124459278bdf
https://pubmed.ncbi.nlm.nih.gov/30399667
https://pubmed.ncbi.nlm.nih.gov/30399667
Autor:
Youngje Sung, Dongcheol Seo
Publikováno v:
Electronics Letters. 51:438-440
A reconfigurable ring antenna for switchable circular polarisation (CP) is presented. The proposed antenna consists of a square ring resonator with two gaps, two pin diodes and a square ring slot with a link on the ground plane. Depending on the loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41792e3d6de68a964280364ad69e7ec7
https://doi.org/10.1049/el.2014.4362
https://doi.org/10.1049/el.2014.4362
Autor:
Y. S. Leev, A.C. England, W. C. Kim, J. Chung, M. Kwon, J. G. Kwak, Y. M. Jeonv, J. W. Yoo, Zhongyong Chen, Dongcheol Seo, Y. S. Bae
Publikováno v:
Plasma Science and Technology. 15:119-122
We have observed reduction of the runaway electron synchrotron radiation, hard X-ray (HXR) intensity, and HXR energy after applying 110 GHz 2nd harmonic electron cyclotron resonant heating (ECRH) during runaway electron (RE) discharges at low density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f4d3f0747a4040198e39ddf43d56095
https://doi.org/10.1088/1009-0630/15/2/08
https://doi.org/10.1088/1009-0630/15/2/08
Publikováno v:
Fusion Science and Technology. 58:412-417
Bolometers are a powerful tool for diagnosing plasma radiation in a reactor-relevant environment. Resistive and imaging bolometers have been applied to the Large Helical Device (LHD) to measure rad...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f838bfec90a6273fdf80f1f31fdb273
https://doi.org/10.13182/fst10-a10826
https://doi.org/10.13182/fst10-a10826
Publikováno v:
Nuclear Fusion. 58:046020
Experimental observations in Korea Superconducting Tokamak Advanced Research (KSTAR) plasmas show that a loss of pre-disruptive runaway electrons can induce a rapid radiative cooling of the plasma, by generating impurity clouds from the first wall. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1318974937e282deff9ebfcd98608c17
https://doi.org/10.1088/1741-4326/aab4aa
https://doi.org/10.1088/1741-4326/aab4aa
Publikováno v:
Fusion Science and Technology. 55:100-105
The Hanbit mirror device has been renovated as Multi-Purpose Plasma (MP2) facility for the divertor plasma simulation, space propulsion, and astrophysical researches. The intensity ratios of He I e...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::682724a256302e863a9b430d7edb332d
https://doi.org/10.13182/fst09-a6991
https://doi.org/10.13182/fst09-a6991
Autor:
M. Kaneko, Homaira Parchamy, Dongcheol Seo, Naoko Ashikawa, T. Omori, Byron J. Peterson, S. Konoshima, Atsuhiko M. Sukegawa
Publikováno v:
Journal of Nuclear Materials. :412-415
An imaging bolometer has been realized for the first time on a tokamak (JT-60U). The imaging bolometer utilizes a 7 cm × 9 cm × 2.5 μm gold foil and an Omega/Micron infrared (IR) camera by Indigo/FLIR (128 × 164 pixels, 70 mK, 30 fps). The imagin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96b2a7b8645c5f22f04174da70fd53c3
https://doi.org/10.1016/j.jnucmat.2007.01.090
https://doi.org/10.1016/j.jnucmat.2007.01.090