It would be difficult to mention an area of research that has more fundamental implications for mankind than does radiation biophysics. Mutagenesis, carcinogenesis, and cancer therapy all fall within the purview of radiation biophysics. These radiobiological phenomena are but manifestations of radiation effects occurring at the molecular level. The main objective of radiation biophysics is to explain the biological effects of radiation by discovering and interpreting the molecular effects. Numerous chemical and physical techniques have contributed to our understanding of the molecular effects of radiation; they including esr spectroscopy, mass spectroscopy, chromatography, autoradiography, and pulse radiolysis, to name but a few. Our purpose in this chapter is to describe the contributions of another technique, namely endor, that has only recently been deployed in radiation research. Our discussion of radiation biophysics will be highly selective, treating only those aspects of the subject where endor has had notable impact.
KeywordsReduction Product Hyperfine Coupling ENDOR Spectrum Coupling Tensor Magnetic Field Parallel
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