Applicability of LLD in neutron dosimetry.

The applicability of LLD in neutron dosimetry was tested and the optimum materials were determined. Investigations have been performed on lyoluminescence variations in sensitivity (X-rays and neutrons) for five different materials: the polyalcohols, mannitol and xylitol, the saccharides, trehalose and glucose and the amino acid, leucine. The decisive factor for the choice of a dosimetric material is its tissue equivalence. The results show striking differences in neutron and gamma sensitivities between the dosimetric materials. The different sensitivities for fast neutrons and gamma-rays can be used for simultaneous determination of neutron and gamma doses in mixed neutron photon radiation fields. The successful application of this dosimetric method can be shown by phantom- and in-vivo-measurements.