太陽質子事件對內輻射帶質子通量的時空分佈影響：范艾倫探測器觀測分析

Effects on Spatial and Temporal Distributions of Energetic Proton Fluxes in the Inner Radiation Belt during Solar Proton Events: Analysis from Van Allen Probe Observations

黃梆碩(Pong Shek Wong)

指導教授 ： 汪愷悌

淡江大學/工學院/航空太空工程學系碩士班/碩士(2021年)

https://doi.org/10.6846/TKU.2021.00462

摘要

本研究針對2013年至2017年的發生大於1000粒子通量單位之強太陽質子事件，透過范艾倫探測器衛星任務酬載之相對質子光譜儀觀測資料，對能量高於約60百萬電子伏特之質子於內輻射帶之時空分佈進行研究分析。分析結果顯示，當強太陽質子事件發生時，內輻射帶會有所膨脹，極高能量之質子會更深入內輻射帶，並且往近地處移動。另外，透過分析結果也發現了帶有高能量質子的強太陽質子事件也可能是引發地磁風暴的原因之一。本研究結果可以作為衛星軌道、輻射防護設計的參考。

關鍵字

內輻射帶 ； 太陽質子事件 ； 質子微分通量 ； 地磁風暴

並列摘要

In this study, observations of inner radiation belt recorded by Relativistic Proton Spectrometer onboard the Van Allen Probes Mission are adopted to explore the spatial and temporal distributions of protons of energies higher than about 60 megaelectronvolts in the inner radiation belt. The analysis focuses on the periods during large Solar Proton Events with intensities larger than 1000 particle flux unit from the year of 2013 to 2017. The results show that the inner radiation belt could expand and the energetic protons could penetrate deeply toward the Earth when large Solar Proton Events occurred. Moreover, the results also show that large Solar Proton Events may be a contributing factor to induce geomagnetic storms. The results of this study could also be referred for designing of satellite orbits and radiation shielding.

並列關鍵字

Inner Radiation Belt ； Solar Proton Events ； Proton Differential Flux ； Geomagnetic Storm

參考文獻

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