The Next Generation Radiation Monitor- NGRM

Abstract

The ESA Next Generation Radiation Monitor (NGRM) will be the successor of the ESA Standard Radiation Environment Monitor (SREM) that is still measuring near-Earth and interplanetary space radiation environment onboard 6 different spacecrafts. NGRM will measure protons from 2 MeV up to 200 MeV, electrons from 100keV up to 7MeV, as well as LET spectrum of ions. Compared to SREM, NGRM will provide a much better energy resolution, will be smaller (<1L), lighter (<1kg) and consume less energy (<1W). In this paper we describe the detection concept of the NGRM and present the detailed Monte Carlo analysis of the performance of the NGRM detector system.