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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2512.02308 |
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| _version_ | 1866912742549487616 |
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| author | Abouhussien, Youssef Miloshevsky, Gennady |
| author_facet | Abouhussien, Youssef Miloshevsky, Gennady |
| contents | Understanding radiation effects in spacecraft components is critical for predicting long-term performance degradation. In this work, a Geant4 Monte Carlo model is developed to compute charge and energy deposition in satellite solar-cell materials exposed to electrons, protons, and X-ray environments. The model is validated against published experimental and computational benchmarks and shows strong agreement across multiple energy ranges. Power-density deposition profiles are then evaluated for a multi-layer solar-cell structure under blackbody soft X-rays, mono-energetic X-rays, and high-energy electrons. The results show that low-energy X-rays dominate damage in surface layers, while high-energy particles penetrate deeper into semiconductor and substrate layers, posing risk to electronic components. These findings highlight the importance of radiation-specific shielding strategies for space solar-cell design. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02308 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Geant4 Modeling of Energy and Charge Deposition in Satellites Solar Cells Abouhussien, Youssef Miloshevsky, Gennady Applied Physics Computational Physics Understanding radiation effects in spacecraft components is critical for predicting long-term performance degradation. In this work, a Geant4 Monte Carlo model is developed to compute charge and energy deposition in satellite solar-cell materials exposed to electrons, protons, and X-ray environments. The model is validated against published experimental and computational benchmarks and shows strong agreement across multiple energy ranges. Power-density deposition profiles are then evaluated for a multi-layer solar-cell structure under blackbody soft X-rays, mono-energetic X-rays, and high-energy electrons. The results show that low-energy X-rays dominate damage in surface layers, while high-energy particles penetrate deeper into semiconductor and substrate layers, posing risk to electronic components. These findings highlight the importance of radiation-specific shielding strategies for space solar-cell design. |
| title | Geant4 Modeling of Energy and Charge Deposition in Satellites Solar Cells |
| topic | Applied Physics Computational Physics |
| url | https://arxiv.org/abs/2512.02308 |