Article ID Journal Published Year Pages File Type
5406573 Journal of Magnetic Resonance 2010 5 Pages PDF
Abstract
A 2 mm diameter by 10 mm long cylinder of fused SiO2 (quartz) γ-irradiated to 1 kGy with 60Co contains about 2 × 1016 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.
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Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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