Results 181 to 190 of about 2,015 (219)

Seismic analysis of the KSTAR tokamak

Proceedings of the 19th IEEE/IPSS Symposium on Fusion Engineering. 19th SOFE (Cat. No.02CH37231), 2003
The objectives of this analysis are to investigate the structural integrity of the KSTAR (Korea Superconducting Tokamak Advanced Research) device for the design earthquake and to enhance its aseismic performance. Three-dimensional finite element beam-shell models of the vacuum vessel, cryostat, and pumping ducts were developed and spectrum analyses ...
H.J. Ahn, Y.W. Lee, Y.C. Kim, J.S. Bak, G.S. Lee   +4 more
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Current Status of the KSTAR Engineering

Plasma Science and Technology, 2004
As there is substantial progress in the KSTAR tokamak engineering, all the major structures and sub-systems are under fabrication and in procurement phase. The vacuum vessel, port, cryostat cylinder, lid, and bellows are being rigorously fabricated in the factory.
J S Bak, K Kim, C H Choi, Y K Oh, B C Kim, N I Her, H L Yang, G S Lee, the KSTAR Team   +8 more
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Key features in the operation of KSTAR

2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The Korean Superconducting Tokamak Advanced Research (KSTAR) device is aimed at advanced tokamak (AT) research. Three years have passed since it achieved its first plasma in 2008. Because it is a superconducting machine and is pursuing AT research, it has unique features in terms of the machine engineering and operation.
null Jong-Gu Kwak, Y. K. Oh, K. P. Kim, S. W. Kim, S. H. Hong, W. Chu, H. J. Lee, Y.O. Kim, J. Kim, S. L. Park, S. H. Hahn, M. K. Park, H. K. Kim, J.G. Bak, Y.S. Bae, W.H. Ko, S.G. Lee, J.H. Lee, J.I. Jung, K.D. Lee, Y.U. Nam, Y.M. Jeon, S.W. Yoon, A. England, W. C. Kim, K.L. Park, H.K. Na, H. L. Yang, M. Kwon   +28 more
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Stability of Superconducting Magnet for KSTAR

IEEE Transactions on Applied Superconductivity, 2008
The magnet system comprises sixteen toroidal field (TF) coils and fourteen poloidal field (PF) coils for KSTAR (Korea Superconducting Tokamak Advanced Research) Tokamak. All the TF coils and 10 PF coils (PF1 ~ 5 UL) are made of Nb3Sn strands and 4 PF coils (PF6 ~7 UL) are made of NbTi strands.
S.H. Park, W. Chung, H.J. Lee, W.S. Han, K.M. Moon, W.W. Park, J.S. Kim, H. Yonekawa, Y. Chu, K.W. Cho, K.R. Park, W.C. Kim, Y.S. Kim, Y.K. Oh, J.S. Bak   +14 more
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Helium refrigeration system for the KSTAR

Fusion Engineering and Design, 2006
Abstract The KSTAR, a tokamak with fully superconducting (SC) magnets, is under construction in the National Fusion Research Center (NFRC). For the proper operation of the KSTAR, the superconducting magnets have to be maintained below the critical temperature of the SC components while charged at their corresponding operation current values.
C.H. Choi, H.-S. Chang, D.S. Park, Y.S. Kim, J.S. Bak, G.S. Lee, I.K. Kwon, H.M. Kim, M.C. Cho, H.-S. Kim, E. Fauve, I. Abe, P. Briend, J.-M. Bernhardt, Y. Cardet, P. Dauguet, J. Beauvisage, F. Andrieu, S.-H. Yang, G.M. Gistau Baguer   +19 more
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Fabrication of the KSTAR superconducting CICC

IEEE Transactions on Appiled Superconductivity, 2002
A superconducting cable-in-conduit conductor (CICC) is adopted for the Korea Superconducting Tokamak Advanced Research (KSTAR) superconducting magnet system which consists of 16 TF coils and 14 PF coils. The KSTAR Magnet system uses two different types of CICCs-Nb/sub 3/Sn cable with Incoloy 908 conduit and NbTi cable with 316LN stainless-steel conduit.
B.S. Lim, S.I. Lee, K.M. Kim, J.Y. Choi
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KSTAR magnet structure design

IEEE Transactions on Appiled Superconductivity, 2001
The Korea Superconducting Tokamak Advanced Research (KSTAR) device is a steady-state-capable experimental fusion device with a fully superconducting magnet system, including toroidal field (TF) coils, central solenoid (CS) coils, and poloidal field (PF) coils.
Y.K. Oh, C.H. Choi, J.W. Sa, D.K. Lee, K.-I. You, H.G. Jhang, J.Y. Kim, N.I. Her, G.S. Lee   +8 more
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KSTAR edge probe diagnostics

Review of Scientific Instruments, 2003
Edge probe diagnostics (EPDs) for the KSTAR consists of fixed Langmuir probe arrays, movable and reciprocating Langmuir probe assemblies. The probe array is designed to measure plasma basic parameters and their poloidal profiles in the plasma-surface interaction regions such as an inboard limiter and divertors.
J. G. Bak, S. G. Lee
openaire   +1 more source

ECH-assisted startup at KSTAR

AIP Conference Proceedings, 2009
The electron cyclotron heating (ECH)‐assisted startup was successful in the Korea Superconducting Tokamak Advanced Research (KSTAR) first plasma campaign completed in June, 2008. It was observed that the second harmonic EC wave of 0.35 MW was sufficient to achieve breakdown in the ECH pre‐ionization phase, to allow burn through, and to sustain the ...
Y. S. Bae, J. H. Jeong, S. I. Park, M. H. Cho, W. Namkung, G. L. Jackson, M. Joung, S. W. Yoon, J. H. Kim, S. H. Hahn, W. C. Kim, H. L. Yang, Y. K. Oh, D. Humphreys, M. L. Walker, Y. Gorelov, J. A. Leuer, A. W. Hyatt, N. W. Eidietis, D. Mueller, J. S. Bak, M. Kwon, Volodymyr Bobkov, Jean-Marie Noterdaeme   +23 more
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Calibration of the KSTAR ECE system

The 30th International Conference on Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts., 2003
Summary form only given, as follows. An electron cyclotron emission (ECE) diagnostic system on KSTAR tokamak was built in last year. The ECE system consists of quasi-optical light collection optics and a heterodyne radiometer. The ECE heterodyne radiometer operates in a single side band and has an eight-channel power divider and filter banks to cover a
S.H. Jeong, C.K. Hwang, I.Y. Kim
openaire   +1 more source