期刊
PHYSICA SCRIPTA
卷 T124, 期 -, 页码 18-22出版社
IOP PUBLISHING LTD
DOI: 10.1088/0031-8949/2006/T124/004
关键词
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Tritium retention by codeposition with carbon on the divertor target plate is predicted to limit ITER's DT burning plasma operations ( e. g. to about 100 pulses for the worst conditions) before the in-vessel tritium inventory limit, currently set at similar to 350 g, is reached. At this point, ITER will only be able to continue its burning plasma program if technology is available that is capable of rapidly removing large quantities of tritium from the vessel with over 90% efficiency. The removal rate required is four orders of magnitude faster than that demonstrated in current tokamaks. 18 years after the observation of co-deposition on JET and TFTR, such technology is nowhere in sight. The inexorable conclusion is that either a major initiative in tritium removal should be funded or that research priorities for ITER should focus on metal alternatives at least for DT operations.
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