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Progress of Thermal Shield for KSTAR; Design and Manufacturing
김웅채,C. Mantileri,D. K. Kang,박주식 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
Thermal shields for KSTAR (Korea Superconducting Tokamak Advanced Research) have been designed and are now under fabrication/installation. Thermal and mechanical analysis shows that the global temperature distribution of the thermal shields is within the designed value of 80 K and they withstand the mechanical loads under operation conditions and abnormal conditions. The assembly process has been designed to avoid any interference with adjacent components during tokamak assembly. Fabricating a prototype has proven the manufacturing feasibility, including forming of the shield panel and welding the tube on the panel. We report the details of engineering design, assembly procedure, and fabrication and installation progress.1
이현정,오영국,김웅채,박수환,김형찬,김기만,Lee, H.J.,Oh, Y.K.,Kim, W.C.,Park, S.H.,Kim, H.C.,Kim, K. 한국초전도학회 2007 Progress in superconductivity Vol.8 No.2
Since the margins for the minimum quench energy and for the operating current in the superconducting magnet determine the operating regime of the magnet, a thermal stability analysis for the KSTAR superconducting magnet system is performed using 1-D Gandalf code. The result shows that the minimum quench energy is about 500 mJ/cc and the operating current margin is about 70 %. These values are larger than those of the KSTAR design criteria and the KSTAR superconducting magnet system can be operated stably under various experimental environments.