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Latest News
Canada clears Darlington to produce Lu-177 and Y-90
The Canadian Nuclear Safety Commission has amended Ontario Power Generation’s power reactor operating license for Darlington nuclear power plant to authorize the production of the medical radioisotopes lutetium-177 and yttrium-90.
J. L. Duchateau, J. Y. Journeaux, B. Gravil
Fusion Science and Technology | Volume 56 | Number 3 | October 2009 | Pages 1092-1123
Technical Papers | Tore Supra Special Issue | doi.org/10.13182/FST09-A9170
Articles are hosted by Taylor and Francis Online.
We review the main design choices for the toroidal field system and associated cryogenic system for Tore Supra, which introduced the use of 1.8K superfluid helium as coolant for a large NbTi magnet system. The main steps of the system commissioning are presented, with a description of the main difficulties encountered, showing the evolution of the monitoring and of the safety system to take into account the lessons drawn from the first operating experience.The impact of plasma operations such as plasma initiation, long plasma discharges, and disruption is given in detail, highlighting their impact on cryogenics, which remains in all cases weak. The fast safety discharges (FSDs) of the system can disturb normal operation. Origin of and statistics about FSDs are discussed, detailing efforts to decrease their number.Finally, maintenance and monitoring of the cryogenic system and of the various sensors are presented with some consideration regarding the aging of the system and its overall availability. Details are given regarding minor failures on components all along the operation. Overall, the accumulated experience is certainly a useful tool to prepare the manufacture and operation of the ITER superconducting magnets despite the differences in design and size.