The pre-equilibrium addition results in fewer emitted particles with higher energies and yields significant improvement in agreement with a large variety of experimental data. The code is being used for the design of the NSNS target and will soon be used for the design of the beam dump and room. A comparison of HETC96 calculations for activations in a 500-MeV proton beam dump with experiment data is in progress. PICA95 is a photon-induced nuclear model code. The neutron source is due to stray electrons hitting the beam tube.
Electrons produce photons in the beam tube and photons generate neutrons.
Calculation of neutron and photondistributions in the BaBar room for radiation protection is now possible and in progress.