LOTTI, SimoneSimoneLOTTI2024-05-072024-05-072021http://hdl.handle.net/20.500.12386/35094The particle background can be considered as a calibration source (the galactic cosmic ray flux) for the X-IFU instrument. The standard X-IFU background spectrum in closed observations is induced by three different components (protons, alpha particles and electrons), that can be modeled as a continuum power law spectrum plus some gaussian emission lines due to fluorescence and escape peaks1 . The three components can have different variations along the solar cycle, and should in principle be modeled independently. Even when used to fit a single component, the “power law + gaussians” model is an empirical model resulting from the superimposition of different background spectra induced by the different particle populations impacting on the detector as a result of the primary particle species. Background calibration sources: - Ahepam o Protons o Alpha o Electrons - WFI - X-IFU high energy band - CryoAC - Filter wheel closed time observations - Other satellites The aim of this document is to produce a global model of the background that will allow us to put together all the information from the different calibration sources to produce a reliable estimate of the background during an observation.ELETTRONICOenResearch reportFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation