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MP simulation on cold coax
The first component of the TTF-III power coupler tested for high power processing is the cold coax, This fig shows a model of the coax in the experimental setup,
Left figure is the calculated multipacting bands, the right is the measured electron pickup and vacuum signals after initial processing. Table lists the power levels for the occurrences of different multipacting bands. The klystron and coupler powers monitored during experiments are different because of attenuation in the setup.
