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http://hdl.handle.net/20.500.12386/33507
Title: | Validation of the HITOMI SXS particle background by Geant4 | Authors: | FIORETTI, VALENTINA | Issue Date: | 2018 | Number: | TN_INAF_HTM_2018_002 | Abstract: | The HITOMI/SXS instrument, despite its short life, provided more than 300 ks of Non X-ray Background (NXB) data and a unique opportunity for validating the Geant4 simulation of an X-ray micro- calorimeter background against in-flight real data. While HITOMI was flown in low Earth orbit (LEO), hence we expect a different composition for the background source population, the ability to reproduce the NXB spectra detected by the anti-coincidence and calorimeter instruments validated the Geant4 set-up for the X-IFU background simulation and that, in the specific, the X-IFU background evaluation is not missing any unexpected interaction affecting X-ray micro-calorimeters. We present here the Geant4 configuration (e.g. physics models, secondary production cut-offs), the models describing the space radiation environment, the simulated anti-coincidence and SXS X-ray spectra, and the comparison with observations. | URI: | http://hdl.handle.net/20.500.12386/33507 | Fulltext: | open |
Appears in Collections: | 4.03 Rapporti di progetto |
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modello-deroga_ATHENA_HITOMI.pdf | 160.4 kB | Adobe PDF | View/Open |
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