The decomposition of an EPR spectrum of a multicomponent system irradiated at 77 K into different paramagnetic centre signals

Main principles of the way to decompose an EPR-spectrum of a multicomponent system, irradiated at 77 K, into separate radiation-induces paramagnetic centre signals are given. Concrete examples of the EPRspectrum decomposition into different free radical signals are given for cases of murine liver and spleen irradiated at 77 K. Radiochemical yields of different free radicals, induced by γ-radiation at 77 K in whole biological tissues, were defined. The data on nature and properties of the paramagnetic centres induced by radiation in biological tissues are shortly reviewed