We describe a high-k mm-wave scattering diagnostic for measuring binormal wavenumber electron scale turbulence on the MAST-U spherical tokamak. Gaussian wave optics and beam-tracing calculations are presented that show the predicted spatial and wavenumber resolution of the diagnostic along with the sensitivity of measurement. The proposed system will operate at a frequency of 376GHz and will facilitate adjustable localization of the turbulence measurement from the magnetic axis out to the plasma edge.
|2022 15th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)
|2022 15th UK-Europe-China Workshop on Millimetre-Waves and Tetrahertz Technologies (UCMMT)
|17/10/22 → 19/10/22
- terahertz materials
- plasma measurements
- Tokamak devices
- frequency measurement