Thanks to the invention of the Neutron Monitor in 1948 and multiple spacecraft which monitor the cosmic ray environment since 1970’s we now have a constant record of the solar activity over almost 70 years. Information prior to this space era, however, are rare and take us back in time only to the late 1930s, when ionization chambers have been introduced. This of course allows us only a narr ...[Read More]
Cosmogenic Radionuclides – The quest of studying the solar activity of thousands of years
Figure 1: Sketch of the processes involved in order to model the atmospheric production of the cosmogenic radionuclides. Courtesy K. Herbst