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1 October 2018 Investigation of cosmic ray and solar energetic particle background of STIX using GEANT4 simulation
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Proceedings Volume 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018; 1080848 (2018) https://doi.org/10.1117/12.2501722
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018, 2018, Wilga, Poland
Abstract
The Spectrometer/Telescope for Imaging X-rays (STIX) is one of the Solar Orbiter instruments and will operate on heliocentric orbit with a perihelion distance of 0.3 a.u. Such close approach to the Sun is connected with severe influence of Solar Energetic Particle (SEP) event. The paper presents results of simulation of expected X-ray background from SEP and cosmic X-rays (CXB) for Caliste-SO detectors, which are used in STIX. The simulation based on Monte Carlo method was implemented in Geant4 toolkit. We considered also the detector effects which affect measured energy like hole tailing, Fano and electronic noise, by implementing this effects in C++ language complementing Geant4 simulations. We show that the largest background is caused by SEPs electrons, while background from protons is negligibly low. The expected CXB caused background is low and can be detected only during periods of low solar activity.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jaromir Barylak, Aleksandra Barylak, Tomasz Mrozek, Marek Stęślicki, and Piotr Podgórski "Investigation of cosmic ray and solar energetic particle background of STIX using GEANT4 simulation", Proc. SPIE 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018, 1080848 (1 October 2018); https://doi.org/10.1117/12.2501722
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