Tuner System Simulation and Tests for the 201-MHz MICE Cavity

The frequency of MICE cavities is controlled by pneumatic tuners as their operation is impervious due to large magnetic fields. The mechanical and RF transfer functions of the tuner were simulated in ANSYS. The first of these tuning systems was assembled and tested at Fermilab. The mechanical response and the RF tuning transfer function have been measured and compared with simulation results. Finally the failure of different actuators has been simulated and tested to predict the operational limits of the tuner.