I. Flux of Low Energy Protons at Sea Level. II. Other Phenomena Involving Particles of Greater than Minimum Ionization

Citation

Jopson, Robert Clarke (1950) I. Flux of Low Energy Protons at Sea Level. II. Other Phenomena Involving Particles of Greater than Minimum Ionization. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/690h-wm96. https://resolver.caltech.edu/CaltechTHESIS:06242025-160202494

Abstract

A proportional counter has been installed in a six-inch cloud chamber with a magnetic field of 6400 gauss. By use of the proportional counter as a selection device, pictures o£ more than 200 low energy protons have been obtained in a time of somewhat over a year's duration. From these the absolute intensity of the low-energy proton component of cosmic rays has been determined at sea level. A spectrum of fifty electrons resulting from mu-meson decays has been obtained as well as other data on mu-mesons. Photographs of typical low-energy protons, mu-meson decays, and other interesting events are presented. In addition several interesting pictures are discussed in detail.

Thesis Files