A5057968224- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Solar and Space Plasma Dynamics
- Gamma-ray bursts and supernovae
- Neutrino Physics Research
- Ionosphere and magnetosphere dynamics
- Radiation Detection and Scintillator Technologies
- Vehicular Ad Hoc Networks (VANETs)
- Opportunistic and Delay-Tolerant Networks
- Mobile Ad Hoc Networks
- Electromagnetic Fields and Biological Effects
- Particle Accelerators and Free-Electron Lasers
- Radiation Therapy and Dosimetry
- Nuclear Physics and Applications
Japan Atomic Energy Agency
2023
Chubu University
2023
Institute of High Energy Physics
2023
Aichi Institute of Technology
2023
Shinshu University Hospital
2021-2023
Japan Aerospace Exploration Agency
2023
National Defense Academy of Japan
2023
Institute of Space and Astronautical Science
2023
Chinese Academy of Sciences
2023
Shinshu University
2019-2021
We report, for the first time, long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in Galactic disk. Particularly, all above 398 are observed apart from known gamma-ray sources compatible expectations hadronic emission scenario which originate decay $π^0$'s produced through interaction protons interstellar medium Galaxy. This is strong evidence that cosmic accelerated beyond our Galaxy spread over
We demonstrate that global observations of high-energy cosmic rays contribute to understanding unique characteristics a large-scale magnetic flux rope causing storm in August 2018. Following weak interplanetary shock on 25 2018, caused an unexpectedly large geomagnetic storm. It is likely this event became geoeffective because the was accompanied by corotating interaction region and compressed high-speed solar wind following rope. In fact, Forbush decrease observed cosmic-ray data inside as...
Muon detectors and neutron monitors were recently installed at Syowa Station, in the Antarctic, to observe different types of secondary particles resulting from cosmic ray interactions simultaneously same location. Continuing observations will give new insight into response muon atmospheric geomagnetic effects. Operation began February, 2018 system has been stable with a duty-cycle exceeding 94%. data shows clear seasonal variation, which is expected temperature effect. We verified...
Abstract The ALPACA experiment is a new international project between Bolivia and Japan. It going to consist of an 83,000 m 2 surface air-shower array 5,400 underground water Cherenkov muon detector array, the experimental site at Mt. Chacaltaya plateau altitude 4,740 m. Its main target observe 100 TeV gamma rays explore high-energy gamma-ray sources in southern sky. This because such hold key identify origin cosmic knee region energy spectrum. So far many have been found They are emitting...
The Scibar Cosmic-Ray Telescope (SciCRT) is a brand new detector of the Sierra Negra Cosmic Rays Observatory (SN-CRO). It designed to observe solar neutrons and muon background produced by galactic cosmic rays. In this work we present Geant4-based simulation detection efficiency SciCRT; for purpose injected 10$^{5}$ muons, in an energy range from 100 1000 MeV, impinging SciCRT array. Our results provide information about performance may be used study variations low
Andes Large area PArticle detector for Cosmic ray physics and Astronomy (ALPACA) is a new air shower array project as collaboration between Bolivia Japan to explore the 100 TeV gamma-ray sky in southern hemisphere. In plateau near Chacaltaya mountain at 4,740 m altitude, surface covering 82,800 m$^{2}$ with underground water Cherenkov muon detectors of total 5,400 will be constructed. Because 2 soil overburden, can detect muons >1.2 GeV showers high purity. Using conventional determine...
Muon detectors and neutron monitors were recently installed at Syowa Station, in the Antarctic, to observe different types of secondary particles resulting from cosmic ray interactions simultaneously same location. Continuing observations will give new insight into response muon atmospheric geomagnetic effects. Operation began February, 2018 system has been stable with a duty-cycle exceeding 94%. data shows clear seasonal variation, which is expected temperature effect. We verified...