A signal-to-noise standard for pulsed EPR
- PMID: 20451433
- PMCID: PMC2885565
- DOI: 10.1016/j.jmr.2010.04.006
A signal-to-noise standard for pulsed EPR
Abstract
A 2 mm diameter by 10mm long cylinder of fused SiO2 (quartz) gamma-irradiated to 1 kGy with 60Co contains about 2x10(16) spins/cm3. It is proposed as a standard for monitoring signal-to-noise (S/N) performance of X-band pulsed EPR spectrometers. This sample yields S/N of about 25 on modern spin echo spectrometers, which permits measurement of both signal and noise under the same conditions with an 8-bit digitizer.
Copyright (c) 2010 Elsevier Inc. All rights reserved.
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