EPR-based dosimetry of large dimensional radiation fields (Chernobyl experience and new approaches)

On the basis of EPR signal investigations using irradiated materials as gamma-radiation sensors, the method of dimensionally quasi-continual dosimetric long cords was developed and applied in the investigation of the destroyed Chernobyl Unit-4. The study of irradiated quartz with different initial and post-irradiation defect concentrations is discussed for dosimetric practical use as well as for fundamental understanding.