Using data on the proton fluxes of the Earth's radiation belts (ERBs) with energy ranging from 0.2 to 100 MeV on the drift L shells ranging from 1 to 8, the quasi-stationary distributions over the drift frequency f_d of protons around the Earth are constructed. For this purpose, direct measurements of proton fluxes of the ERBs during the period from 1961 to 2017 near the geomagnetic equator were employed. The main physical processes in the ERB manifested more clearly in these distributions, and for protons with f_d>0.5 mHz at L>3, their distributions in the {f_d,L} space have a more regular shape than in the {E,L} space. It has also been found that the quantity of the ERB protons with f_d ∼ 1–10 mHz at L∼2 does not decrease, as it does for protons with E > 10–20 MeV (with f_d>10 mHz), but increases with an increase in solar activity. This means that the balance of radial transport and loss of ERB low-energy protons at L∼2 is disrupted in favor of transport of these protons: the effect of an increase in the radial diffusion rates with increasing solar activity overpowers the effect of an increase in the density of the dissipative medium.

中文翻译：

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地球辐射带质子在粒子漂移频率上的分布

利用在1到8范围的漂移L壳上的能量范围为0.2到100 MeV的地球辐射带（ERB）的质子通量的数据，围绕地球的质子的漂移频率f _d的准平稳分布 为建造。为此，在地磁赤道附近对1961年至2017年期间ERB的质子通量进行了直接测量。ERB中的主要物理过程在这些分布中表现得更加清晰，对于f _d > 0.5  mHz在L > 3时的质子 ，它们在{ f _d，L }中的分布空间比{ E，L }空间具有更规则的形状。还已经发现，与ERB质子的量˚F _d 〜  1-10在兆赫大号〜2 不降低，因为它为与质子é  >  10-20兆电子伏（与 ˚F _d > 10 兆赫），但随着太阳活动的增加而增加。这意味着，在ERB低能量质子的径向传送，并损失的平衡大号〜2 为了促进这些质子的运输而被破坏：径向扩散速率随太阳活动增加而增加的影响超过了耗散介质密度增加的影响。