Fix&addition to manual section on trapping

The following models for trapping of charge carriers can be selected.

\subsection{Ljubljana}

\label{sec:trap:ljubljana}

In the Ljubljana (sometimes reffered to as \textit{Kramberger}) model~\cite{kramberger}, the trapping time follows the relation

Placeholders for parameters in the formula are denoted with squared brackets and a parameter number, for example \parameter{[0]} for the first parameter provided.

Parameters specified separately from the formula can contain units which will be interpreted automatically.

\begin{warning}

Note that both fluence and temperature are not inherently available in the custom trapping model, but need to be provided as additional parameters as described above.

\end{warning}

The following configuration parameters replicate the Ljubljana model described in Section~\ref{sec:trap:ljubljana} using a custom trapping model.

\begin{minted}[frame=single,framesep=3pt,breaklines=true,tabsize=2,linenos]{ini}

# Replicating the Ljubljana trapping model at a temperature of 293 K and a neutron equivalent fluence of 1e14 neq/cm^2

trapping_model = "custom"

trapping_function_electrons = "1/([0]*pow([1]/263,[2]))/[3]"

trapping_parameters_electrons = 5.6e-16cm*cm/ns, 293K, -0.86, 1e14/cm/cm

trapping_function_holes = "1/([0]*pow([1]/263,[2]))/[3]"

trapping_parameters_holes = 7.7e-16cm*cm/ns, 293K, -1.52, 1e14/cm/cm

\end{minted}