FLUKA simulations of the target thickness dependence of Cu-K$\beta$/K$\alpha$ intensity ratios

TL;DR

This study uses FLUKA Monte Carlo simulations to analyze how copper target thickness affects the Cu-Kβ/Kα fluorescence intensity ratios, revealing a saturation trend with increasing thickness.

Contribution

The paper introduces a detailed FLUKA simulation approach to model the thickness dependence of Cu fluorescence line ratios, comparing results with experimental and theoretical data.

Findings

Kβ/Kα ratio increases with thickness

Ratio reaches saturation at higher thicknesses

Simulation results align with experimental data

Abstract

The numerical Monte-Carlo simulations of Cu-K$\alpha$ and Cu-K$\beta$ fluorescence lines induced by monoenergetic Am-241 radiation in copper have been presented. The simulations included modeling the K$\beta$/K$\alpha$ intensity ratios for various thicknesses of copper. The results obtained using the FLUKA code were compared to available experimental and theoretical values. A clear relationship was observed between the simulated K$\beta$/K$\alpha$ intensity ratios and the sample thickness: as the thickness increased, the K$\beta$/K$\alpha$ ratio also increased until it reached saturation.