Radial-pulse propagation and impedance characteristics of optically shuttered channel intensifier tubes

A distributed transmission line model that describes analytically the voltage and current wave propagation characteristics as functions of time for any point on the surface was developed. The optical gain's spatial uniformity and shutter open times depend on the electrical pulse width and amplitude, and on the applied bias. The driving point impedance is derived from the model and is a function of an infinite sum of terms in the complex frequency. The synthesis in terms of lumped constant network elements is realized in first and second Foster equivalent circuits.