俘获质子各向异性对近地轨道电离剂量的影响

2017 17th European Conference on Radiation and Its Effects on Components and Systems (RADECS) Pub Date : 2017-10-01 DOI:10.1109/RADECS.2017.8696148

A. Varotsou, P. Pourrouquet, Romain Fonta, D. Boscher, R. Ecoffet

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引用次数: 0

摘要

在近地轨道任务的辐射硬度保证过程中，通常不考虑捕获质子的各向异性。在本研究中，考虑捕获质子群的这一特性对电子元件水平的总电离剂量和风险评估的影响进行了评估。对OMERE工具进行了具体的开发，并使用了SAC-D卫星(660公里，$98^{\ mathm {o}}$)的真实三维辐射模型来考虑组件周围的屏蔽。结果表明，考虑质子各向异性对TID结果没有重要影响。

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Impact of the Trapped Proton Anisotropy on the Ionizing Dose at Low Earth Orbits

The trapped proton anisotropy is not commonly taken into account in the radiation hardness assurance process for Low Earth Orbit missions. In this study, the impact of considering this characteristic of the trapped proton population is evaluated for the TID, Total Ionizing Dose, risk assessment at electronic component level. A specific development has been made in the OMERE tool and the realistic 3-dimensional radiation model of the SAC-D satellite (660 km, $98^{\mathrm {o}}$) has been used to take into account the shielding around the components. It is shown that considering the proton anisotropy has no important impact on the TID result.

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2017 17th European Conference on Radiation and Its Effects on Components and Systems (RADECS)

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