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A Method of Altering the Modulation Type and frequency of Commercial ESR Spectrometers:  
1994 (English)In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 5, no 7, p. 797-780Article in journal (Refereed) Published
Abstract [en]

A strategy of altering the modulation type and frequency of commercial continuous wave ESR spectrometers without changes in the main console is discussed. A simple converter unit, permitting the use of various external receivers, widening the possibilities for the basic commercial set-up is suggested. Block diagrams for altering the modulation frequency and type are presented and the use of boxcar averaging systems for the time-resolved experiments is discussed in detail. As an example of a successful application of this method, some results obtained with two different RYDMR accessories, based on the commercial CW ESR spectrometers, are discussed. X-band OD ESR studies of hydrocarbon solutions are illustrated by the spectra of p-xylene and trans-phenyl-propene radical cations, and methyl acrylate and trans-azabenzene radical ions, detected in situ under X-irradiation. Semiconductor studies are illustrated by CW and time-resolved X-band ODMR spectra of PGa-P3Y point defects as well as its OD ENDOR and ENDOR-induced ODMR spectra

Place, publisher, year, edition, pages
IOP , 1994. Vol. 5, no 7, p. 797-780
Keywords [en]
electron spin resonance; optical detection of ESR; free radicals; time resolved spectra; experimental studies; irradiation
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:miun:diva-10083DOI: 10.1088/0957-0233/5/7/008OAI: oai:DiVA.org:miun-10083DiVA, id: diva2:273027
Available from: 2009-10-19 Created: 2009-10-19 Last updated: 2017-12-12Bibliographically approved

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Koptyug, Andrey

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