Neutron Fluence Measurements with Solid-State Nuclear Track Detectors: Results of a Comparative Study with Gold and Indium Foils

Comparative measurements of neutron flux for low-level irradiations in the MOL-∑∑ reactor have been carried out using gold and indium foils and various solid-state nuclear track detectors (SSNTDs) in conjunction with fissile (n,f) and fertile (⁶Li and ¹⁰B) (n,α) converter foils as well as intrinsic detectors. Experimental and computed values of thermal and epithemal neutrons, using ⁶Li and ¹⁰B, are also presented for other arrangements. The results show good agreement and internal consistency for both thermal- and fast-neutron fluences, thus confirming the use of SSNTDs as absolute dosimetric devices.