Abstract

An overview on the presentations at the first virtual symposium on cosmic ray studies with neutron detectors is given. The meeting was held online in July 2020. Neutron detectors on ground are shown to provide significant contributions to research on interactions of galactic cosmic rays with magnetic fields in the Heliosphere and on the acceleration of energetic particles, as well as to a growing range of applications, including geophysics and space weather. The advent of easily accessible databases makes original data easily available to a large user community. The present overview outlines and introduces the more detailed articles contained in the proceedings.

Highlights

  • Cosmic rays at energies between several hundreds of MeV and tens of GeV play a major role for energetic and plasma processes in the Heliosphere

  • Neutron detectors on ground are shown to provide significant contributions to research on interactions of galactic cosmic rays with magnetic fields in the Heliosphere and on the acceleration of energetic particles, as well as to a growing range of applications, including geophysics and space weather

  • Various types of neutron detectors on the Earth are used worldwide to probe neutrons produced in interactions of primary cosmic rays with the atomic nuclei of the Earth’s atmosphere, and to infer information on their interaction with the magnetic fields of the Heliosphere and the magnetosphere of the Earth, and on heliospheric processes of particle acceleration

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Summary

Introduction

Various types of neutron detectors on the Earth are used worldwide to probe neutrons produced in interactions of primary cosmic rays with the atomic nuclei of the Earth’s atmosphere, and to infer information on their interaction with the magnetic fields of the Heliosphere and the magnetosphere of the Earth, and on heliospheric processes of particle acceleration. While these fields of investigation have a history over more than 70 years, they gain new interest with each new space mission launched to probe heliospheric plasma processes. Contributions are addressed in the order of their presentation at the meeting, which may be different from the order in the present proceedings

Cosmic rays in the heliosphere
Cosmic rays in the atmosphere
Solar energetic particle events – GLE analysis
Space weather research and services
Neutron detectors: databases and analysis techniques
Findings
Conclusion

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