# Multiscale Plasma Modeling

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codes:en_brems

On this site we present a C++ code which can be used to create data tables for the doubly differential cross sections for electron-nucleus Bremsstrahlung and pair production. The code consists of two parts: In the beginning there is a header which defines the functions for Bremsstrahlung and pair production. These lines have to appear in the beginning of a C++ code. Then the functions for Bremsstrahlung and pair production follow which can be placed anywhere else in the code.
The function to calculate the doubly differential cross section for Bremsstrahlung can be called by

brems(E_kin, omega, Theta_i)

where E_kin denotes the kinetic energy of the incident electron in Joule, omega is the frequency of the emitted photon in 1/s and Theta_i is the scattering angle. The function to calculate the doubly differential cross section for pair production can be called by

pairpr(E_kin, omega, Theta_p)

where E_kin denotes the kinetic energy of the created positron in Joule, omega the frequency of the incident photon in 1/s and Theta_p the angle between both.