geant4

The example uses importance sampling or the weight window technique according to an input parameter. It uses scoring in both cases. Importance values or weight windows are defined according to the mass geometry. In this example the weight window technique is configured such that it behaves equivalent to importance sampling: The window is actually not a window but simply the inverse of the importance value and only one energy region is used that covers all energies in the problem. The user may change the weight window configuration by changing the initialization of the weight window algorithm in example,cc. Different energy bounds for the weight window technique may be specified in B01DetectorConstruction.

The executable takes one optional argument: 0 or 1. Without argument or with argument: 0, the importance sampling is applied with argument: 1, the weight window technique is applied.

See also Category "biasing" documentation.