Multifrequency electron paramagnetic resonance of irradiated l-alanine

The radical generated by γ-irradiation of crystalline l-alanine was examined by continuous wave (CW) and pulsed electron paramagnetic resonance (EPR) at 1.8, 3.2, 4.9, 9.1 and 19.4 GHz. The spin-flip satellite lines that make a prominent contribution to the saturated spectra at 9.1 GHz are less cons...

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Veröffentlicht in:Applied radiation and isotopes 1996-11, Vol.47 (11), p.1235-1239
Hauptverfasser: Ghim, Barnard T., Du, Jing-Long, Pfenninger, Susanne, Rinard, George A., Quine, Richard W., Eaton, Sandra S., Eaton, Gareth R.
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Sprache:eng
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Zusammenfassung:The radical generated by γ-irradiation of crystalline l-alanine was examined by continuous wave (CW) and pulsed electron paramagnetic resonance (EPR) at 1.8, 3.2, 4.9, 9.1 and 19.4 GHz. The spin-flip satellite lines that make a prominent contribution to the saturated spectra at 9.1 GHz are less conspicuous at lower frequencies because of overlap with the allowed transitions. The spin-lattice relaxation times measured by long-pulse saturation recovery and phase memory times measured by electron spin echo increase with increasing microwave frequency.
ISSN:0969-8043
1872-9800
DOI:10.1016/S0969-8043(96)00037-1