Preliminary analysis of a high-energy neutron depth-dose experiment

Dosimetry at intermediate- and high-energy particle accelerators, such as the proposed Accelerator Production of Tritium (APT) facility, is a complex problem because of a multiplicity of radiation components and the wide energy range involved. Neutrons generally produce the largest contribution to the dose equivalent because they are among the most abundant particles and have the greatest biological effect. A high-energy neutron depth-dose experiment will be performed at Los Alamos Neutron Scattering Center/Weapons Neutron Research (LANSCE/WNR) complex as part of a continuing effort to meet APT dosimetry needs. This experiment will provide an opportunity to test the validity of MCNPX in calculating high-energy neutron dose conversion coefficients. Future work includes estimation of the scattered flux from the phantom for radiation protection purposes and a comparison of experimental results with MCNPX calculations