“…The bloc scheme of the control system illustrated in figure 7, shows how the controller interacts with the power supply and insures the protection of the system by measuring the current in the coil and the temperatures along the collector. In parallel, this compact controller (figure 8) is also able to proceed with calorimetry measurements on every cooling circuits of the gyrotron [10], as well as measuring the 45 thermocouples placed along the collector in the Z axis (#45 at the top). Displaying these measurements in real-time during the gyrotron operation is particularly useful during the gyrotron commissioning, and allows detecting any degradation of the system during long-term operation.…”