Abstract
The Isotope Research Materials Laboratory (IRML) at the Oak Ridge National Laboratory routinely provides passive dosimeter materials to the research community for monitoring neutron energy, flux, and fluence. Important considerations in selecting these materials include, but are not limited to, response to specific neutron energies, encapsulation material, temperature limitation, size, reaction product half-life, amount of reaction product after irradiation, and competing reactions. Details relating to the preparation, characterization, and availability of specific passive dosimeter materials that address the considerations described above are summarized. Dosimetry used for characterizing the neutron environment in the Dounreay Prototype Fast Reactor for determining the integral cross sections for a wide variety of higher actinide isotopes is described.
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