Neutron dosimetry in French nuclear power plants. Problems and their solutions in 1995

Summary Personal neutron dosimetry in nuclear power plants is one of the hardest to achieve because there is no nuclear reaction that is both efficient and which ensures a suitable discrimination between 50 keV to 2 MeV fast neutrons and gamma photons. Neutron doses being low, the method used until now has been based on ambient dosimetry and the spent time in exposed areas. The advent of bubble detectors meets our immediate requirements until the direct reading electronic neutron dosimeter, which is still at the feasability research stage, can be utilized.