One of the main planks of the argument that CRF is responsible for the most recent warming is based on figure 14b in Veizer (2005), where there appears to be a trend in CRF from eg Climax neutron monitor (also, see plots at this URL). (realclimate.org)
With RCI's vast knowledge of I&C systems for nuclear power plants, they also provide expertise in the areas of neutron monitoring, in - core instrumentation, and process sensors for monitoring the safety critical aspects of the NuScale Power Module (NPM). (nuscalepower.com)
The modelled curve appears to follow well the one based on neutron monitor observations. (swsc-journal.org)