Bremsstrahlung of 5-25 keV electrons incident on MoSi$_2$, TiB$_2$ and ZrB$_2$ thick solid conductive compounds

TL;DR

This study measures bremsstrahlung emission from 5-25 keV electrons on MoSi$_2$, TiB$_2$, and ZrB$_2$, demonstrating the additivity approximation's validity in Monte Carlo simulations for these conductive compounds.

Contribution

It provides experimental validation of the additivity approximation in Monte Carlo simulations for bremsstrahlung in conductive compounds, contrasting previous findings for insulators.

Findings

Experimental spectra agree with Monte Carlo simulations.

Additivity approximation is feasible for conductive compounds.

No significant deviations near the Duane-Hunt limit in these cases.

Abstract

Absolute measurements were conducted to study the bremsstrahlung emission from ~5-25 keV electrons incident on three thick solid conductive compounds of MoSi$_2$, TiB$_2$ and ZrB$_2$. The additivity approximation was applied in the Monte Carlo PENELOPE simulations for compounds and mixtures. The results showed that in general the experimental bremsstrahlung spectra were in good agreement with the Monte Carlo simulation results, suggesting the feasibility of the additivity approximation in Monte Carlo simulations for the studied cases even in the absolute measurements and that the significant differences between experiments and Monte Carlo simulations near the Duane-Hunt limit for insulating targets in previous studies do not appear in the present studies.