Be-10 calibration data from:
Goehring, B., and 6 others, 2012. Late Glacial and Holocene Be-10 production rates for western Norway. Journal of Quaternary Science, v. 27, pp. 89-96.
Calibration data: Excel spreadsheet
Differences between the reference Be-10 production rates inferred from the calibration data in the table below and those reported in the source paper are due to differences in the code used to do the calculation and, to a lesser extent, rounding errors. To ensure consistency between production rate calibration and exposure-age calculations, the values in the table below are calculated using the same code that is used to compute the exposure ages in the online calculator. In this case, the main differences are that i) different optimization schemes are used here and in the source paper, and ii) the source paper included a correction for postglacial isostatic rebound at one of two sites. As the online calculator does not perform an isostatic rebound calculation when computing an exposure age, it is not incorporated in the calibration.
Goehring et al. did not measure Al-26 concentrations. Thus, reference production rates for Al-26 in the table below are calculated from those for Be-10 using (P26 / P10) = 6.75.