ESR spectroscopy applied to the study of radiation mechanisms

Autor: M. C. R. Symons
Rok vydání: 1992
Předmět:
Zdroj: Applied Magnetic Resonance. 3:37-52
ISSN: 1613-7507
0937-9347
DOI: 10.1007/bf03166779
Popis: ESR spectroscopy is a powerful tool for detecting radicals or radical-ions trapped in solids, and in many cases “primary” electron-gain and-loss centres can be identified and their structures elucidated. Sometimes these primary centres are trapped in pairs, separated byca. 5 to 15 A giving triplet state ESR spectra. The significance of pair-trapping in relation to current theories for the action of ionizing radiation will be discussed with reference to several recent examples. Generally, the primary centres are well separated and ESR does not give useful information about spurs or local regions of high radical densities. Reasons for trapping will be summarized with specific reference to DNA and proteins. The question of electron-return will be discussed, and several examples of this will be reported.
Databáze: OpenAIRE
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