2012
DOI: 10.1109/tasc.2011.2178054
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Addressing the Technical Challenges for the Construction of the ITER Central Solenoid

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Cited by 9 publications
(3 citation statements)
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“…JK2LB has a lower integrated thermal shrinkage coefficient between room temperature and 4.2 K than that of conventional 316LN [106][107]. Utilizing the thermal shrinkage differential between the conductor jacket, made up of JK2LB, and the so-called tie plates, made up of NITRONIC® 50 (XM-19), featuring an integral thermal contraction between room temperature and 4.2 K similar to the one of 316LN [108], enables the application of a suitable axial pre-compression to the CS coil stack at the end of cooldown without overstressing the tie plates at room temperature [109]. However, in 2008-2009, at the time of the CS conductor PA signature, there were concerns that the production costs of JK2LB might be prohibitive.…”
Section: Jacket Materialsmentioning
confidence: 99%
“…JK2LB has a lower integrated thermal shrinkage coefficient between room temperature and 4.2 K than that of conventional 316LN [106][107]. Utilizing the thermal shrinkage differential between the conductor jacket, made up of JK2LB, and the so-called tie plates, made up of NITRONIC® 50 (XM-19), featuring an integral thermal contraction between room temperature and 4.2 K similar to the one of 316LN [108], enables the application of a suitable axial pre-compression to the CS coil stack at the end of cooldown without overstressing the tie plates at room temperature [109]. However, in 2008-2009, at the time of the CS conductor PA signature, there were concerns that the production costs of JK2LB might be prohibitive.…”
Section: Jacket Materialsmentioning
confidence: 99%
“…The CS assembly [7] consists of a vertical stack of six independent winding pack modules, which is supported from the bottom of the TF coils through its pre-load structure. The preload structure consists of a set of toroidally segmented tie-plates located at the inner and outer diameters of the coil stack.…”
Section: System Overview and Integrationmentioning
confidence: 99%
“…One of the most widely reported technical challenges has been the problem with the central solenoid (CS) which is a cylindrically shaped superconducting magnet made up of multiple modules that are stacked up vertically to a total height over 13 m and weighing more than 950 tons [2,3]. The main problem with the magnet was that the Nb 3 Sn based Cable-In-Conduit Conductor (CICC) that makes up each module was not performing to requirements during early tests.…”
Section: Introductionmentioning
confidence: 99%