Excitation system of low-impedance foilless transition-radiation oscillator

The guiding magnetic field system is designed to conduct the experimental investigation of the L-band low-impedance foilless transit-radiation oscillator. The total capacitance of the system is 5.4 mF. The length of the designed solenoid is 45 cm, and its theoretical inductance and impedance are 42 mH and 0.66 respectively. Based on the design, the coil is fabricated and the corresponding platform for the experiment is established. The real inductance and impedance are 40 mH and 0.61 respectively. The target experiment testifies that the intense relativistic electron beam can be well guided by the designed magnetic field system.