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Durham e-Theses
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Studies of cosmic ray showers using neon flash tubes

Scull, P. S. (1962) Studies of cosmic ray showers using neon flash tubes. Masters thesis, Durham University.



This thesis describes experiments to determine the properties of the light output from neon flash-tubes traversed by ionizing particles under a wide range of conditions together with the determination of the density spectrum of extensive air showers in the region of mean shower size Ṉ = 9 x 10(^5) particles. It is shown that the intensity of the light output of the flash-tube in an array is such that an accurate estimate of the number of flashed tubes may be made by determining the total amount of light emitted using a photomultiplier. The possibilities of using this technique are discussed. Extensive air showers were selected by an array of four Cerenkov detectors and the particle density at a large flash- tube array was obtained for each shower. The slope of the differential density spectrum was found to be -3.3 ± 0.3. Comparisons were carried out between the expected shower sizes obtained by the Cerenkov detectors and the flash-tube array for different ranges of density and distances' from the shower core. A calibration of the Cerenkov detectors was obtained. The relationship between these results and those of other workers are considered.

Item Type:Thesis (Masters)
Award:Master of Science
Thesis Date:1962
Copyright:Copyright of this thesis is held by the author
Deposited On:14 Mar 2014 16:40

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