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    Neutron Dosimetry Using Diallyl Phthalate Resin


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    Diallyl phthalate resin plates showed favorable characteristics as fission track detectors. The detection efficiency of fission fragments was about 100% for both perpendicular and random incidence. DAP plates were insensitive to alpha particles and fast neutrons. The plates possessing fission tracks were etched after heat treatment or after gamma-ray irradiation. Heat treatment above 160°C lasting for 1 hour and irradiation above 10kGy increased the etch-pit diameter. A reduction of the track detection efficiency was observed in the plates exposed to heat treatment of 260°C lasting for 1 hour and irradiations of 2MGy and above. These phenomena were observed in the study of plates in which fission tracks were made after the above- mentioned heat treatment or irradiation. These results suggest not only the conditions under which the plates may be used, but also the possibility of estimation of a detector's thermal history or gamma-ray dose.


    neutron dosimetry, diallyl phthalate resin (DAP), fission fragments, track, heat treatment, gamma-ray irradiation, etch-pit diameter, detection efficiency

    Author Information:

    Tsuruta, T
    Professor, Atomic Energy Research Institute, Kinki University, Osaka,

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP13671S