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July 29, 2015 to August 6, 2015
World Forum
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Comparison of muon hodoscope URAGAN and neutron monitors' data for 2008 – 2014

Aug 1, 2015, 3:30 PM
1h
Theater Foyer (World Forum)

Theater Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 27
Poster contribution SH-EX Poster 2 SH

Speaker

Dr Natalia Barbashina (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Description

Study of temporal variations of the flux of cosmic rays on the Earth's surface provides important information about the processes in the heliosphere that cause these variations. These processes have the strong influence on the low-energy cosmic particles, so these studies are mainly carried out in a flux of neutrons detected by ground-based neutron monitors (NM). Studies of variations of cosmic ray muon flux with URAGAN muon hodoscope are not less interesting, since muons are sensitive to higher (than neutrons) energies of the primary cosmic rays. The results of measurements of cosmic ray variations with muon hodoscope URAGAN, and Moscow (MNM) and Apatity (ANM) neutron monitors during 2008 – 2014 are compared. URAGAN and MNM are located at the same latitude and have the same threshold rigidity (2.45 GV). URAGAN and ANM (0.65 GV) have different threshold rigidities, but similar asymptotic directions for primary particles. Hourly data of neutron monitors corrected for barometric effect and URAGAN data corrected for barometric and temperature effects have been analyzed. Correlation dependences between the parameters of the counting rates of the neutron monitors and the muon hodoscope during different heliospheric disturbances are obtained. Periods of coincidence and anticoincidence of data in muon and neutron components of cosmic rays are analyzed. The connection between these results and various processes of solar activity is discussed.
Registration number following "ICRC2015-I/" 48
Collaboration -- not specified --

Primary author

Dr Natalia Barbashina (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Co-authors

Ms Alena Konovalova (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Prof. Anatoly Petrukhin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Anna Dmitrieva (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mr Evgeny Melnikov (Institute of Applied Geophysics) Prof. Igor Yashin (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Konstantin Kompaniets (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Dr Victor Shutenko (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)) Mrs Yuliya Mishutina (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Presentation materials