MATLAB implementation of an analytical model for the emission of x rays from an x-ray tube

An analytical model for the energy and angular distribution of bremsstrahlung and characteristic x rays emitted from an x-ray tube is provided for tungsten and molybdenum targets. The model includes photon mass attenuation coefficients, CSDA ranges, NIST bremsstrahlung cross sections, and bremsstrahlung shape functions extracted from the PENELOPE [v. 2014] materials database. Also included are Monte Carlo-calculated (PENELOPE) electron penetration data, describing the depth, energy, and angular distribution of electrons in thick x-ray targets. The emission of characteristic x rays is taken into account using a previously developed model, which includes Monte Carlo-calculated depth distributions of x-ray fluorescence (see the related link to dataset below). A Python implementation of the above model has been included in the following toolkit: https://bitbucket.org/spekpy/spekpy_release Some of the key features of this toolkit are also available through a web-based graphical user interface (GUI): https://spekpy.smile.ki.se/