Status of Design and R and D for the Korean ITER Diagnostic Systems

Full text: Development and implementation of the ITER diagnostic systems have major challenges because the environment is much harsher and the requirements for plasma and first wall measurements are much harder than present devices. About 40 diagnostic systems are designed to be implemented to provide accurate and reliable measurement for a wide range of plasma parameters, in total about 45 parameters. All the ITER members are contributing diagnostics of which the ITER Korea (Korean domestic agency, KODA) will procure one diagnostic upper port plug and three diagnostic systems of a neutron activation system (NAS) and, main and divertor vacuum ultraviolet (VUV) spectrometer systems. Implementation activities including R and D on ITER diagnostics in Korea started shortly after procurement assignment. Currently, the ITER Korea is conducting detailed design and engineering work to resolve the outstanding technical issues and to finalize the technical specifications and also participating in joint activities for development of technical documents of the procurement arrangement (PA), which include measurement requirements, functional block diagrams, procurement schedule tables, and engineering annexes. In this paper, the status of design and results of R and D for the Korean ITER diagnostic systems will be described. (author)