Analysis of the ITER High-Frequency Magnetic Diagnostic Set

René Chavan, Jérôme Guterl, Jonathan Bryan Lister, Thomas Maeder, Jean-Marc Moret, Albert Perez, Francisco Sanchez, Duccio Testa, Gilbert Tonetti, Matthieu Toussaint
2010
Article de conférence

Résumé

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with |deltaBMEAS/BPOL|~10^-4 (~1G) for frequencies up to 2MHz to resolve toroidal mode numbers (n) in the range |n|=10-50. A review of the measurement requirements for HF MHD instabilities in ITER was initiated during the TW4 work-program and led to significant interest for physics and real-time control issues in measuring modes with |deltaBMEAS| as low as ~10^-4G at the position of the sensors, with |n|

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Assessment of the ITER high-frequency magnetic diagnostic set

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The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with vertical bar delta B-MEAS/B-POL vertical bar similar to 10(-4) (similar to 1 G) for frequencies up to 2 MHz to resolve toroidal mode numbers (n) in the range vertical bar n vertical bar = 10 to vertical bar n vertical bar = 50. A review of the measurement requirements for HF MHD instabilities in ITER was initiated during the TW4 work-program and led to significant interest for physics and real-time control issues in measuring modes with vertical bar delta(MEAS)vertical bar as low as similar to 10(-3) G at the position of the sensors, with vertical bar n vertical bar

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