Summary
This paper presents a Geant4-based computational framework for simulating proton-induced radioactivation background in hard X-ray telescopes operating in low Earth orbit, validated against flight data from the Hitomi X-ray observatory. The work addresses instrumental background noise—a significant source of measurement uncertainty in space-based X-ray astronomy. The methodology and validation approach may inform background mitigation strategies for future hard X-ray and gamma-ray space missions.
UK applicability
Not applicable. This is fundamental space physics instrumentation research with no direct bearing on UK agricultural, soil health, or human nutritional outcomes.
Key measures
Proton-induced radioactivation background simulation accuracy; comparison of Geant4 model predictions with Hitomi X-ray observatory in-orbit measurements
Outcomes reported
The study presents Geant4-based simulation methodology for modelling proton-induced radioactivation background in hard X-ray telescopes, validated against in-orbit measurements from the Hitomi satellite in low Earth orbit.
Topic tags
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