An apparatus which allows the best use of the radiofrequency current from a commercial amplifier has been built in order to obtain the best signal-to-noise ratio, particularly in ENDOR spectra of free radicals in solid crystalline matrices, by employing a standard rectangular (TE102) or cylindrical (TE011) cavity. The usual 50 ? output impedance of the power amplifier has been stepped down to 12.5 or 5.55 ? with a corresponding increase of the rf current in the wire which irradiates the sample in the cavity.
Low impedance ENDOR spectrometer
Pinzino C;
1979
Abstract
An apparatus which allows the best use of the radiofrequency current from a commercial amplifier has been built in order to obtain the best signal-to-noise ratio, particularly in ENDOR spectra of free radicals in solid crystalline matrices, by employing a standard rectangular (TE102) or cylindrical (TE011) cavity. The usual 50 ? output impedance of the power amplifier has been stepped down to 12.5 or 5.55 ? with a corresponding increase of the rf current in the wire which irradiates the sample in the cavity.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
