PFC / JA - 93 - 25 ITER Millimeter - Wave CTS Diagnostic Option
نویسندگان
چکیده
Localized alpha-particle velocity distribution and density, ion temperature, DT fuel ratio, and internal magnetic field pitch angle can all be potentially diagnosed by a collective Thomson scattering system. Relativistic electron cyclotron calculations and TORAY ray tracing for 6 tesla ITER parameters indicate that 90 GHz is an optimum frequency for this diagnostic. With 400 kW at the plasma and a 90* scattering angle, signal to noise ratios approaching 100 are possible for 0.5%n, alpha-particle fractions and 100 ms integration times. A millimeterwave system would be robust and adaptable to the ITER environment and access.
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