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系統識別號 U0026-2807201616564800
論文名稱(中文) 以ARTEMIS衛星觀測進行2012年太陽質子事件之粒子通量分析與輻射劑量計算
論文名稱(英文) Analysis of Particle Flux and Calculations of Radiation Dose during Solar Proton Events in 2012 from ARTEMIS Observations
校院名稱 成功大學
系所名稱(中) 太空與電漿科學研究所
系所名稱(英) Institute of Space and Plasma Sciences
學年度 104
學期 2
出版年 105
研究生(中文) 林冠傑
研究生(英文) Guan-Jie Lin
學號 LA6031085
學位類別 碩士
語文別 英文
論文頁數 90頁
口試委員 指導教授-談永頤
共同指導教授-汪愷悌
口試委員-苗君易
中文關鍵字 太陽質子事件  ARTEMIS  輻射劑量 
英文關鍵字 Solar proton event  ARTEMIS  radiation dose 
學科別分類
中文摘要 隨著衛星科技的進步與發展,了解太空輻射對衛星本體及太空人進行任務時所可能產生的危害益發重要。這些輻射於太陽質子事件發生時可傳到地球之同步軌道,帶來大量大於10MeV的高能帶電粒子。
在2012年3月7日發生了這十二年以來最強的太陽質子事件。我們發現,在ARTEMIS衛星中,靜電分析儀與固態望遠鏡所量測到的微分能量通量數據,在接近的時間點也有與之相同提升的趨勢。雖然GOES衛星所量測的能量範圍與ARTEMIS衛星不同,但這可能意味著太陽質子事件能夠影響到地球磁尾,且量測到了經由打在衛星或太空船上所產生的二次粒子。若將太陽質子事件期間所量測到的能量轉換成相對應的輻射劑量,對於進行任務的太空人以及衛星儀器而言,其承受之風險也是一項重要議題。
英文摘要 The year 2012 has been a year which is active in solar-activity due to the approaching of the solar maximum year. The solar proton event (SPE) occurred on March 7^th, 2012 is the strongest SPE for the past twelve years.
Although solar proton events are usually referred to a substantial increase of protons flux measured by Geostationary Operational Environmental Satellite (GOES) at an energy level larger than 10 MeV, the observations from the Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) mission show that the differential energy fluxes increase at all energy channels of Electrostatic Analyzers (ESA) and Solid State Telescopes (SST), which cover a wide range below MeV. This probably means that the solar proton events can affect to the Earth's deep magnetotail and produce the secondary particles as the primary particles passing through the spacecraft. The pitch-angle distributions associated with the increase of differential energy fluxes are also explored to learn their coming directions. Furthermore, the risks of radiation doses that astronauts and satellites would take from particles are calculated from the measured flux during the solar proton events.
論文目次 摘要 I
誌謝 III
CONTENTS IV
TABLES VI
FIGURES VII
Chapter 1. Introduction 1
Chapter 2. Solar proton events 3
2.1 Description of the solar proton events 3
2.2 The solar proton events in 2012 5
Chapter 3. The THEMIS and ARTEMIS Mission 7
3.1 Introduction of the THEMIS mission 7
3.2 Introduction of the ARTEMIS mission 8
3.3 Instruments of the THEMIS/ARTEMIS satellites 12
Chapter 4. Observations during the SPEs in 2012 16
4.1 Data source and data analysis software 17
4.2 Positions of the ARTEMIS probes 19
4.3 Magnetic fields from TS04 model 22
4.4 Observations on differential energy flux 28
4.4.1 Comparisons with the differential energy flux of non-SPE periods 35
4.5 Definition of the solar proton event period from particle flux observations 47
Chapter 5. The calculations of radiation dose rate 56
5.1 Introduction of radiation dosimetry 56
5.2 Method to calculate the radiation dose rate 58
5.3 Discussion 73
Chapter 6. Summary 75
References 76
Appendix 1 79
Appendix 2 82
Appendix 3 86
Appendix 4 89
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