Spectra of Protons and Alpha Particles and Their Comparison in the NUCLEON Experiment Data

Karmanov, D.E.; Kovalev, I.M.; Kudryashov, I.A.; Kurganov, A.A.; Panov, A.D.; Podorozhny, D.M.; Turundaevskiy, A.N.; Vasiliev, O.A.

doi:10.1134/S002136402007005X

Spectra of Protons and Alpha Particles and Their Comparison in the NUCLEON Experiment Data

2020

5 pages

Published in:

JETP Lett. 111 (2020) 7, 363-367,
Pisma Zh.Eksp.Teor.Fiz. 111 (2020) 7, 435-440

Published: 2020

DOI:

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Nuclear Science References

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Abstract: (Springer)

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.

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