The aim of the NUCLEON space experiment was to measure spectra of high-energy cosmic rays. Direct measurements of energy spectra of protons and nuclei of cosmic rays which allow separating particles in charge are required to solve important astrophysical problems. The satellite was launched on December 26, 2014, and operated for three years. Measured spectra of protons and alpha particles in the energy range of 2–500 TeV per particle have been presented. The results have been analyzed and compared to other experimental data for lower energies. The ratio of fluxes of protons and alpha particles is nearly constant in a wide range of magnetic rigidities (3–100 TV). Thus, the behavior of the ratio of the spectra is significantly different from a similar dependence in the region of lower magnetic rigidities measured in other experiments. One of the possible explanation of this effect can be given within a model with one close source.

中文翻译：

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质子和α粒子的光谱及其在核实验数据中的比较

NUCLEON空间实验的目的是测量高能宇宙射线的光谱。为了解决重要的天体物理学问题，需要直接测量质子和宇宙射线核能谱，以使电荷分开。该卫星于2014年12月26日发射，运行了三年。给出了每个粒子能量范围为2–500 TeV的质子和α粒子的测量光谱。对结果进行了分析，并与其他实验数据进行了比较，得出较低的能量。质子和α粒子的通量之比在很大的磁刚度范围内（3–100 TV）几乎恒定。因此，光谱比率的行为与在其他实验中测得的较低的磁性刚度区域中的相似依赖性显着不同。