fix z-coordinate of NeutronShielding
The position of the global envelope of the NeutronShielding was not explicitly set. As a result, it was not placed at the beginning of the Downstream region, but at its centre, where the MUON system is.
This fix assumes the same position as in DetDesc.
@zexu @edelucia
Validated by
-
Core Software -
RTA -
Simulation
Edited by Christopher Rob Jones