Density Spectrum of Charged Particles in Extensive Air Showers

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概要

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• A density spectrum of extensive air showers was obtained by means of a plastic scintilator at a mountain altitude, 2770 m above sea level. In the range from 50 to 1O^4 particles/m^2, the integral density spectrum is expressed as Δ^<-1.55±0.05>. By an EAS array the accompanied EAS's were also observed, and their contributions to the density spectrum were analyzed. The results are as follows. There is no agreement beween the exponent of density spectrum and that of size spectrum which was obtained directly from EAS array data in this experiment. This is due to the fact that the size of EAS is the larger, the lateral structure of the central region becomes sieeper. Moreover, the lateral structure fiuctuates considerably in the same size showers. The exponent of the density spectrum seems to decrease gradually with increasing altitude, the value on the mountain is 10% smaller than that of the sea level. Though statistical error is large, the exponent of the integral density spectrum increases from 1.55 to 2.0 above the density 2×10^4 particles/m^2.

• 社団法人日本物理学会の論文
• 1964-06-05

著者

• Katsumata Itsuo

  Department Of Physics Faculity Of Science Osaka City University:(present) Research Institute For Ato

関連論文

• Lateral Density Distribution of Charged Particles in the Central Region of Extensive Air Shower
• Density Spectrum of Charged Particles in Extensive Air Showers

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