1. Scientific-Research Institute of Oil and Gas, Moscow, Russian Federation 2. ESR Research Center, Institute of Chemical Physics of Russian Academy of Sciences, ul. Kosygina 4, B-334, 117977, Moscow, Russian Federation
Abstract:
The four-fold improvement of EPR signal-to-noise ratio for radiation-induced paramagnetic centres in comparison with a conventional way is achieved by detection of the tooth enamel EPR signal at 77 K and rapid passage conditions.