Calculation of pulse X-ray spectrum field generated by intense diode

Electron energy distribution was calculated according to current and voltage waveforms. The characteristics of X-ray spectrum in series diode and four-channel parallel diode were calculated using Monte Carlo simulation model. The numerical results indicate that the total energies of X-ray fluence of two diodes are 76.50, 3.74 mJ/cm2 respectively; average photon energies are 81.13, 60.77 keV respectively. The dose distribution of series diode in a surface is saddle shape, and the dose uniformity of two diodes in 452 and 2700 cm2 areas is 1.70∶1, less than 6.30∶1 respectively. Bremsstrahlung conversion efficiency of electron beams in the two diodes is 0.29%, 0.32% respectively.