The upper panel shows the ϕ parameter values by O’Neill (2010b) and Gieseler et al. (2017). In the lower panel, we show the time profile of absorbed dose rate due to GCR calculated with equation (6) while using the BON10 ϕ values for the period before 2010 and the Gieseler et al. (2017) thereafter. The absorbed dose rates seen by the different detectors are indicated with colors. The shaded area around the curves correspond to a 20% uncertainty in the value of ϕ. For more details see text.