This component marks the beginning of the region in trace in which pseudo-photons
are to be propagated. Pseudo-photons are photons which are generated by the function
compute_func from before and after SCATTER photon states which have been logged by
a set of Scatter_logger/Scatter_logger_stop components.
N.B. This component should be immediately preceeded by an Arm. Any components between this one
and a subsequent Scatter_log_iterator_stop-component will be visited by the set of pseudo-photons
as if they were regular photons in the classical McStas-manner.
Input parameters
Parameters in boldface are required;
the others are optional.
Name
Unit
Description
Default
compute_func
Address of the function that computes a psuedo photon from before and after scatter states.