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
This publication has 12 references indexed in Scilit:
- Electron spin relaxation in polarized secondary radicalsMolecular Physics, 1978
- Experimental observations of chemically induced dynamic electron polarization (CIDEP)Molecular Physics, 1975
- A pulsed EPR spectrometerReview of Scientific Instruments, 1974
- Time resolved ESR spectroscopy. I. A kinetic treatment of signal enhancementsThe Journal of Chemical Physics, 1973
- Electron spin-lattice relaxation times from the decay of E.S.R. emission spectraMolecular Physics, 1973
- Sensitivity of Radio Frequency Measurements in the Presence of Oscillator NoiseReview of Scientific Instruments, 1972
- EPR Pulse Radiolysis Studies of the Hydrogen Atom in Aqueous Solution. I. Reactivity of the Hydrogen AtomThe Journal of Chemical Physics, 1971
- A flash-correlated 1$\mu$s response electron spin resonance spectrometer for flash photolysis studiesJournal of Physics E: Scientific Instruments, 1970
- Microwave Oscillator Noise Reduction by a Transmission Stabilizing CavityIEEE Transactions on Microwave Theory and Techniques, 1968
- Sensitivity Considerations in Microwave Paramagnetic Resonance Absorption TechniquesBell System Technical Journal, 1957