Comparative study of some new EPR dosimeters

Investigations have been made of four new radiation dosimetry EPR candidates from the same family of materials: sulfamic acid, sulfanillic acid, homotaurine, and taurine. Mass energy attenuation coefficients, mass stopping power values and the time dependence of the radiation induced radicals are compared. Also investigated are the microwave saturation behavior and the effect of applied modulation amplitude on both peak-to-peak line width (WPP) and peak-to-peak signal height (HPP). The dosimeters are characterized by simple spectra and stable radiation-induced radicals over reasonable durations, especially in taurine dosimeters. Sulfamic acid dosimeters possessed the highest sensitivity followed by taurine and homotaurine and sulfanillic.

► Several EPR dosimeters were suggested based on SO3−SO3− radical.
► Taurine, homotaurine, sulfanilic, and sulfamic acid all possess simple EPR spectra.
► Dosimeters were compared to each other in terms of the dosimetric point of view.
► Energy dependence curves of the selected dosimeters were compared to eachother.