HIGH-ENERGY RESPONSE FUNCTIONS OF BONNER SPECTROMETERS

Response functions of Bonner sphere spectrometers were calculated for neutron energies from 10 MeV to 1.5 GeV by the Monte Carlo high energy transport code HADRON. Calculations were made for two types of therma l neutron detector inside the Bonner spheres: He-3 proportional counte r and (LiI)-Li-6 scintillation detector. The results obtained are comp ared with calculations using the MCNP and the LAHET Monte Carlo codes. An analysis of some possible error sources in the calculation of high energy response functions and in the interpretation of the experiment al data in high energy neutron fields is presented.