An X-ray Converter of a Megavolt Electron Beam for Powerful Pulsed Generators

摘要

The problems of developing bremsstrahlung converters for powerful pulse electron diodes of high-current generators are analyzed. Designs for diode anodes, converter optimization guidelines, and methods for increasing the X-ray yield are discussed. The design of a new converter manufactured from a thin pressed tungsten wire placed between two plates of pyrolyzed graphite is reported. The use of this converter for converting a high-power megavolt pulsed electron beam into bremsstrahlung is described. The converter lifetime is 10{sup}7 pulses at an average power density of up to 100 W/cm{sup}2 and a peak power density of 10{sup}9 W/cm{sup}2. The converter parameters are optimized for various electron energies.