Abstract
The interference of beta-, gamma-, and x-radiation with nuclear track counting in Kodak Personal Neutron Monitoring Film, Type A, is examined for several irradiations with Pu-Be neutrons in combination with various exposures from other radiations. Neutron irradiations were 197, 1183, and 3550 mrems. Exposures to other radiations ranged from 50 mR to 5000 mrads. The data show that x-ray exposures as small as 16 mR can severely interfere with nuclear track counting in Kodak Personal Neutron Monitoring Film, Type A. Conditions under which routine nuclear track counting should not be accepted as a measure of fast neutron irradiation are indicated. It is concluded that monitoring for fast neutrons with Type A film in the presence of low-energy photons is impracticable.