On the High-Energy Electron-Photon Component in Extensive Air Showers

Journal Article · Thu Mar 15 04:00:00 EST 1962 · Journal of the Physical Society of Japan

DOI:https://doi.org/10.1143/JPSJ.17.415· OSTI ID:4819475

Toyoda, Yoshio

Using a large multiplate cloud chamber containing absorbers of 43 radiation lengths and 24 density detectors, characteristics of the electron- photon component of energy above 1 Bev in extensive air showers (EAS) were studied at sea level. The size N of the selected shower extended from 2 x 10⁴ to 5 x 10⁶. Results were compared with data observed at 2770 m altitude. The mean lateral distribution of the high-energy electron-photon component at 1 to 20 Bev can be represented by the form (r + 2)/sup -n/, with n expressed by 2.6 E^0.24, where the energy E and the distance from the axis r are measured in Bev and m, respectively, The energy flux of the high-energy electron-photon component in the core fluctuates remarkably, and the ratio of the maximum value to the minimum value is greater than 100 in the showers of the same size. The integral energy spectrum of the electron-photon component can be expressed by E^{1.5 ± 0.1} at 2 to 50 Bev.

• Research Organization: Kobe Univ., Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-018305
• OSTI ID: 4819475
• Journal Information: Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 3 Vol. 17; ISSN 0031-9015
• Publisher: Physical Society of Japan
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ATMOSPHERE
CLOUD CHAMBERS
COSMIC RADIATION
ELECTRONS
ENERGY RANGE
EXTENSIVE AIR SHOWERS
GEV RANGE
LATTICES
LEVELS
MEASURED VALUES
PARTICLE TRACKS
PHOTONS
PLATES
SCATTERING
SEA
SEA LEVEL
THICKNESS