A signal-to-noise standard for pulsed EPR.
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.
Eaton
Gareth R
GR
Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208, USA. geaton@du.edu
Eaton
Sandra S
SS
Quine
Richard W
RW
Mitchell
Deborah
D
Kathirvelu
Velavan
V
Weber
Ralph T
RT
D000465:Algorithms; D003627:Data Interpretation, Statistical; D004578:Electron Spin Resonance Spectroscopy / Q000592:standards* / Q000706:statistics & numerical data*; D008872:Microwaves; D011791:Quartz / Q000737:chemistry; D011827:Radiation
D011791:Quartz
J Magn Reson. 1999 Sep;140(1):69-83
10479550
J Magn Reson. 1999 Sep;140(1):218-27
10479565
Appl Radiat Isot. 2008 Sep;66(9):1240-4
18353657
Rev Sci Instrum. 2019 Feb;90(2):024102
30831717