Abstract:

The primary and the secondary radiation produced in the atmosphere can be a serious issue for the reliability of microelectronics devices embedded in aircraft and this is of a major concern for aircrew member's dose assessment. Moreover, Polar Region development induces an important issue related to space weather.

In the framework of the CHINSTRAP project supported by the French Polar Institute (IPEV), a new cosmic ray induced neutron spectrometer has been installed in December 2015 in the inner Antarctic Plateau, at Concordia station. Atmospheric shower modelling associated to a primary cosmic ray model allows for deducing the proton, muon and electron fields from cascade neutron measurements.

Using the fluence to human dose conversions coefficients, the complementarity of measurement and modelling makes it possible to calculate the human dose, but also to extrapolate it for other localization. In the same way, Single Event Effect risk can be determined from electronic devices, which is particularly critical for nanoscale technologies whose sensitivities are increasing with the technological integration. This paper proposes to analyze two-year measurements from December 2015 to 2017, and to investigate the Cosmic Ray impacts on Antarctica activities, in the point of view of human dose and electronic systems. Discussions of this work will be extended to contributions of the cosmic ray knowledge improvement to the space weather and the cosmogenic nuclide dating activities.