RADICAL SPECIES, AND METHOD FOR MEASURING RECEIVED DOSES

摘要

The invention relates to a radiation-induced radical species characterized in that it has, when measuring a biological nail, hair, or stratum corneum tissue sample by continuous wave EPR spectroscopy at ambient temperature: a Lande factor of 2.004; during Q band measurements at ambient temperature, a minimum signal intensity and a maximum signal intensity, said intensities being reached for magnetic field values separated by 1.8 mT; during X band measurements, a signal forming a singlet; and at the highest frequency, a signal having Lande factor anisotropy. The invention also relates to methods suitable for the identified radical species and intended for preparing a sample, analyzing the measured signal, and estimating a received dose.

主权项

1. A method for preparing a sample of biological tissues having received a dose of ionizing radiations, comprising keratin, in particular tissues of the nail, hair or skin-cornea type, for a measurement of the dose, characterized in that it comprises:
hydration of the sample for a period of more than 5 minutes, and controlled dehydration of the sample.