5.5 MW PPM-Focused Klystron Ready for Testing

Tube for testing

CCR completed the assembly of a PPM-focused klystron designed to generate 5.5 MW of RF power at S-Band. The klystron is targeted for the next generation of cancer therapy devices. The elimination of the solenoid will reduce the size of the RF source system, allowing a smaller cancer-treatment device.

The klystron magnetic circuit uses an innovative design that provides an azimuthally symmetric field while providing access to the cavities for tuners and water cooling. This prototype tube includes tuners on five cavities. After determination of the optimum cavity frequencies, the tuners will  be removed to reduce the production cost.

This program is funded by the U.S. Department of Energy through grant number DE-SC0007591.

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