Electron noise analysis of Wolter-I X-ray telescope based on Monte Carlo simulation

To investigate bremsstrahlung radiation generated when the multi-layer nested Wolter-I X-ray telescope is bombarded by a high-energy electron stream,A simulation analysis using Monte Carlo simulation software MCNP was performed to study this process(The mirror reflective film material:Ir and Au). According to the simulation results, we found that:the change of electron incident angle has a negligible impact on the yield of the noise X-ray photons;When the incident electron energy is less than 40 kV, the energy of the generated X-ray photons is concentrated in a range below 15 keV, the yield of noise X-ray photons is lower than the order of 10-6,which has little effect on the optical performance of the telescope.