What is it about?
This paper explains how a new multi-frequency reflectometry diagnostic was built for the ASDEX-Upgrade tokamak. This diagnostic allows sampling 7 different positions simultaneously, and it allows us to zoom-in or zoom-out in specific plasma regions.
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Why is it important?
Most instruments with multiple frequencies only allow a fixed configuration. Our instrument allows changes to the multi-frequency configuration within experiments and even inside a single discharge!
Read the Original
This page is a summary of: W-band tunable, multi-channel, frequency comb Doppler backscattering diagnostic in the ASDEX-Upgrade tokamak, Review of Scientific Instruments, August 2023, American Institute of Physics, DOI: 10.1063/5.0151271.
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