Energetic Particle Radiation Environment Observed by RAD on the Surface of Mars During the September 2017 Event
Energetic Particle Radiation Environment Observed by RAD on the Surface of Mars During the September 2017 Event
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RAD 在 2017 年 9 月事件期间观测到的火星表面高能粒子辐射环境
DOI：
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发表时间：
2018
影响因子：
5.2
通讯作者：
G. Reitz
中科院分区：
文献类型：
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作者：
B. Ehresmann;D. Hassler;C. Zeitlin;Jingnan Guo;R. Wimmer–Schweingruber;D. Matthiä;H. Lohf;S. Burmeister;S. Rafkin;T. Berger;G. Reitz
9月10日至12日的太阳高能粒子事件造成辐射评估探测器自2012年8月着陆以来在火星表面测得的辐射环境最强烈的增加。我们报告的细节测量高能粒子环境的辐射评估探测器在大风陨石坑在这一事件。太阳高能粒子事件使低能质子通量（低于100 MeV）增加了30倍，高能质子通量增加了4倍，高于事件前的水平。4 He通量（低于100 MeV/nuc）上升了10倍，中性粒子上升了2倍。UTC 9月10日19：50左右开始增加，9月11日早上达到最高水平通量，并持续约10小时，然后向背景水平下降。9月13日福布什下降的开始使质子通量低于事件前的强度。
The 10–12 September Solar Energetic Particle event produced the strongest increase of the radiation environment measured by the Radiation Assessment Detector on the surface of Mars since landing in August 2012. We report the details of the measurements of the energetic particle environment from Radiation Assessment Detector in Gale crater during this event. The Solar Energetic Particle event increased the low‐energy proton flux (below 100 MeV) by a factor of 30, and the higher‐energy proton flux by a factor of 4, above preevent levels. The 4He flux (below 100 MeV/nuc) rose by factors up to 10, and neutral particles by a factor of 2 above background. The increase started on 10 September around 19:50 UTC, peak‐level fluxes were reached on the morning of 11 September and prevailed for about 10 hr before decreasing toward background levels. The onset of a Forbush decrease on 13 September decreased the proton flux below preevent intensities.