The Size Spectrum and Zenith Angle Distribution of Air Showers containing 10<sup>5</sup>-10<sup>6</sup> Particles
H Coxell; P S Scull; A W Wolfendale; H Coxell; Department of Physics, Durham Colleges in the University of Durham; P S Scull; Department of Physics, Durham Colleges in the University of Durham; A W Wolfendale; Department of Physics, Durham Colleges in the University of Durham
Журнал:
Proceedings of the Physical Society
Дата:
1963-04-01
Аннотация:
An array of flash-tubes has been operated with air shower detectors to study the density spectrum and zenith angle distribution of showers.The density spectrum has been measured with two triggering arrangements. For showers of median size of 2 × 10<sup>5</sup> particles the differential spectrum can be represented by a power law of exponent -2.61 ± 0.05 and for a median size of 8 × 10<sup>5</sup> particles the exponent is -3.3 ± 0.3. This result lends support to previous observations of an increase in slope of the size spectrum between 10<sup>5</sup> and 10<sup>6</sup> particles.The zenith angle distribution has been measured and found to correspond to a shower attenuation length of 115 ± 14 g cm<sup>-2</sup> for showers in the range (1-10) × 10<sup>5</sup> particles.
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