An alternative method of neutron–gamma mixed-field dosimetry by using paired ionization chambers

In order to expand the available energy range of neutron dosimetry by the paired ionization chambers, an alternative method has been newly proposed. The method employs another TE–TE chamber with a gamma-ray attenuator instead of conventional C–CO2 chamber. A rough comparison of uncertainty estimates between conventional method and newly proposed one is carried out. The result indicates that the accuracy of the present method is far less-sensitive to the change of neutron energy and is evidently superior to that of the conventional method.