BEXCO - Room A(101/102)
[CRD015] HEPD: a particle detector for the CSES space mission
The particle detector HEPD (High-Energy Particle Detector ) is a range-calorimeter for the near-Earth measurement of electron, proton and light nuclei fluxes from few MeV up to few hundreds MeV. It has been developed by the Italian "Limadou" collaboration in the framework of the Chinese-Italian CSES mission. The HEPD will allow to study the solar-terrestrial environment, Coronal Mass Ejections (CMEs), Solar Energetic Particles (SEPS) events and low-energy cosmic rays. Important scientific objective is also the study of short time scale variability and precipitation of inner Van Allen belt particles. The HEPD detector consists of two layer plastic scintillators, one segmented, for the trigger and a calorimeter constituted by a tower of plastic scintillator counters and a LYSO plane. The direction of the incident particle is provided by two planes of double-side silicon microstrip detectors placed in front of the trigger. Functional and beam tests have been successfully performed. The HEPD will fly on board of the Chinese CSES satellite together with other payloads devoted to monitoring electromagnetic field and plasma perturbations of the atmosphere, ionosphere and low magnetosphere induced by different sources. The aim is to analyse the coupling mechanisms between lithosphere and ionosphere. At present the detector is installed on the satellite. The launch is scheduled for August 16th, 2017.