Simultaneous neutron and gamma spectrum adjustment

The spectrum adjustment procedure was extended to simultaneous neutron and gamma spectrum adjustment, and the feasibility of this technique is demonstrated in the analysis of HFIR dosimetry experiments. Conditions in which gamma rays may contribute considerably to radiation damage in steels are discussed. Beryllium helium accumulation fluence monitors (HAFMs) were found to be good monitors in gamma fields of intensities high enough to contribute to steel embrittlement. Use of {sup 237}Np, {sup 238}U, and {sup 9}Be HAFM as gamma dosimeters is proposed for high-dose irradiations in high-energy, high-intensity gamma fields