Extended Data Table 4 Relative uncertainties in 41Ca/Ca measurements

From: Atom-trap trace analysis of 41Ca/Ca down to the 10–17 level

  1. Each column from left to right denotes the contribution to the relative uncertainties in 41Ca/Ca measurements, and the relative standard error of the corresponding contribution. The rows are all the error sources in 41Ca/Ca measurements and the total. All the listed error sources contribute to the uncertainties in 41Ca/Ca measurements with the super ratio derivation of Asample in Eq. (1). The errors of 41Ca counts correspond to the uncertainties of L41s, while errors of system instabilities correspond to the uncertainties of L43s. The last term is the uncertainty of Astd. a Quadrature sum of all the contributions.
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