A 0.5 mu s time resolving superheterodyne ESR spectrometer
- 1 November 1980
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 13 (11), 1214-1218
- https://doi.org/10.1088/0022-3735/13/11/017
Abstract
An X-band (9.3-9.5 GHz) superheterodyne ESR spectrometer with 0.5 mu s time resolution is described. The ESR sample is placed in a cavity which is one of the impedances in a hybrid-T bridge. Spin-lattice relaxation times and chemical lifetimes as low as 2 mu s were measured. As an example, the photoreduction of 1,4-naphthoquinone in iso-butanol was investigated and the phenomenon of secondary polarisation was demonstrated.Keywords
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