Numerical analysis of electron orbits in a compact high-current circular microtron

The performance of a compact high-current circular microtron is investigated by means of computer simulation. The microtron investigated here is operated with the Russian second type of acceleration and has an electron gun, composed of a cathode and an anode, located outside the accelerating cavity. The simulation results enable us to see the possibility of stable acceleration, to estimate the capture coefficient, and to predict the initial conditions necessary for stable acceleration.