✦ LIBER ✦

Frequency Dependence of EPR Signal-to-Noise

✍ Scribed by George A. Rinard; Richard W. Quine; James R. Harbridge; Ruitian Song; Gareth R. Eaton; Sandra S. Eaton

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 108 KB
Volume: 140
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.1999.1798

No coin nor oath required. For personal study only.

✦ Synopsis

Direct measurements of electron spin-echo signal and noise in well-characterized X-band and S-band spectrometers agree with predictions of frequency dependence based on first principles. For the particular spectrometers compared, the echo at 9.52 GHz was 9.5 times larger than the echo at 2.68 GHz, after scaling for differences in spectrometer gain. The calculated ratio was 7.6. This result contrasts with prior predictions that the frequency dependence would be much greater.

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