Title :
Baseline system design and prototyping for the ITER high-frequency magnetic diagnostics set
Author :
Testa, D. ; Chavan, R. ; Guterl, J. ; Lister, J.B. ; Moret, J.-M. ; Perez, A. ; Sanchez, F. ; Schaller, B. ; Tonetti, G. ; Toussaint, M. ; Encheva, A. ; Vayakis, G. ; Walker, C. ; Fournier, Y. ; Maeder, T. ; Carfantan, H.
Author_Institution :
Centre de Recherches en Phys. des Plasmas, Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
This paper reports the mechanical and electrical tests performed for the prototyping of the ITER high-frequency magnetic sensor and the analysis of the measurement performance of this diagnostic. The current design for the sensor is not suitable for manufacturing for ITER due to the high likelihood of breakages of the un-guided tungsten wire during the winding. A number of alternative designs and manufacturing processes have been investigated, with the Low Temperature Co-fired Ceramic technology giving the best results. The measurement performance of the baseline system design for the high-frequency magnetic diagnostic cannot meet the intended ITER requirements due to its intrinsic spatial periodicities.
Keywords :
Tokamak devices; fusion reactor design; fusion reactor materials; high-frequency effects; plasma diagnostics; ITER high-frequency magnetic diagnostics set; W; baseline system design; intrinsic spatial periodicity; low temperature Co-fired ceramic technology; unguided tungsten wire; Electric variables measurement; Magnetic analysis; Magnetic sensors; Mechanical sensors; Mechanical variables measurement; Performance analysis; Performance evaluation; Prototypes; System analysis and design; Testing; ITER; LTCC; high-frequency magnetic diagnostic;
Conference_Titel :
Fusion Engineering, 2009. SOFE 2009. 23rd IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2635-5
Electronic_ISBN :
978-1-4244-2636-2
DOI :
10.1109/FUSION.2009.5226481
