Very energetic protons in Saturn's radiation belt
Very energetic protons in Saturn's radiation belt
复制标题
土星辐射带中的高能质子
DOI：
10.1029/ja085ia11p05803
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发表时间：
1980
影响因子：
--
通讯作者：
C. Mcilwain
中科院分区：
文献类型：
--
作者：
W. Fillius;C. Mcilwain
非常高能的质子被困在土星内部的辐射带中。加州大学圣地亚哥分校先锋11号上的仪器已经确定在M3频道上发现了能量为80 MeV的质子，并在C3频道上初步探测到了能量为600 MeV的质子。质子的空间分布与被捕获的电子的空间分布不同，主要的区别是质子被最里面的卫星强烈吸收，而电子不被吸收。我们已经通过土星环中产生的宇宙射线反照率中子的衰变来估计注入质子的源强度。所需的质子寿命为∼20年。
Very energetic protons are trapped in the inner Saturnian radiation belt. The University of California at San Diego instrument on Pioneer 11 has definitely identified protons of energy >80 MeV on channel M3 and has tentatively detected protons of energy >600 MeV on channel C3. The spatial distribution of the protons is distinct from that of the trapped electrons, the main difference being that the protons are strongly absorbed by the innermost moons and that the electrons are not. We have estimated the source strength for injecting protons by the decay of cosmic ray albedo neutrons generated in the rings of Saturn. The required proton lifetime is ∼20 years.