Journal of the Physical Society of Japan · 1962 · 125 citations · 0 references
EngineeringGeophysicsRadiation DetectionRadiation MeasurementRadiation PhysicsDetector TechnologyRadiation Detector ArraysRadiation DetectorsRadiation InstrumentationScintillation DetectorsScintillator MaterialsCosmic-ray SpectraParticle Density EstimationScintillationScintillation DetectionScintillation MaterialsScintillator Array DesignScintillator Crystals
Nineteen 3.3-m/sup 2/ plastic scintillation detectors in a hexagonal array covering 2 km/sup 2/ were used in this study. Methods of recording and analyzing data are discussed, and results are presented on the following: lateral distribution of particle density, the proportion of penetrating particles, variation of shower intensity and shower size with atmospheric depth, the primary cosmic ray energy spectrum, isotropy of primary cosmic radiation, and the largest shower recorded. (A.G.W.)