In addition to re-analyzing the Barber and George experiment, mode e p n MCNP6 computer models have been modified to allow neutron production simulations to be performed for all available stable and some radioactive isotope files from Z=3 through Z=95 for JENDL-5.0 and TENDL-2021. In particular jobs utilizing the Barber and George geometry, with an elemental target thickness of one radiation length from https://pdg.lbl.gov/2009/AtomicNuclearProperties and a 20 MeV monoenergetic electron beam were run. Neutron production was tallied in the same manner as used in the Barber and George analysis.
Documentation
- A. C. (Skip) Kahler General photonuclear verification: e-p-n mode