Department of Physics and Astronomy: Publications and Other Research
Document Type
Article
Date of this Version
June 1968
Abstract
Profiles of the solid core of long, flat, ending tracks of heavy primary cosmic rays in Ilford G-5 emulsion have been measured by manually tracing their enlarged (3500X) photographic image. These measurements agree well in the ending 3000 μ of residual range (β <0.3) with a reformulated theory of track width based on computation of the spatial distribution of ionization energy. The measured core width in G-5 emulsion is the sum of the sensitized cylinder diameter, at which 6000 erg/cm3 of ionization energy is deposited by δ rays, and the diameter of a developed grain.
Comments
Published in Physical Review Volume 170, Number 2. 10 June 1968. Copyright © 1968 American Physical Society. Used by permission. Online at http://prola.aps.org/