Analytical study on the maximization of bremsstrahlung and K-series production efficiencies in flash x-ray tubes

Publisher Website
Google Scholar
Abstract
For a high-vacuum discharge flash x-ray tube, pulsed by an ideal transmission line, the important tube emission characteristics such as dose, maximum dose rate, discharge delay time, and pulse width are studied as functions of the line characteristics and the K-series excitation voltage. The tube is modeled by a time-varying ohmic resistor; transient tube voltage and current can be determined out of a closed-form solution. Basic matching rules are worked out in order to approach ideal operation for a given tube impedance-time profile. A parametric analysis reveals that with decreasing pulser impedance, there are increases in the bremsstrahlung and K-series radiation emissions, but that the pulse delay time and pulse width also increase, thus limiting applications to high-rate phenomena.

This publication has 12 references indexed in Scilit: