Mechanical Frequency Modulation System as Applied to the Cyclotron
FRED H. SCHMIDT · Review of Scientific Instruments · 1946
A high speed variable capacitor operating in a vacuum is described. The capacitor is coupled to the cyclotron dee by means of a transmission line whose length is such that a voltage node occurs near its center. The frequency change obtained is greater than 13 percent. The frequency-time characteristic of the system is considered and a method of adjusting the shape of the characteristic is described.