Résumé
CNES and ONERA have developed a radiation monitor ICARE-NG to measure protons and electrons in radiation belts. This instrument is able to measure a wide range of energy for protons and electrons, but no measurements of few MeV protons are performed. The objective of this study is to extend capabilities of this radiation monitor by adding a low energy proton sensor. In this article the design of a detector for low energy protons compatible with the ICARE-NG instrument is presented. Response functions for protons and electrons of the low energy proton detector are calculated using Monte-Carlo simulations. The calculation of predicted count rates of particles using the AP-8 and AE-8 models will be performed.