Photometric Measurements of Thin Tracks in Nuclear Emulsion

Difficulties observed in the application of track theory to CNO particles are attributed to problems in the application of a light scattering correction in microphotometry. 257 Figure 1. Track width W/4 μm vs residual range, of cosmic ray ions in G.5 emulsion. Light scattering parameters are fitted to the track of a 24Mg ion. When the width is calculated for lighter ions (curves) they depart increasingly from the measured width as Z decreases to 10B — (S. Behrnetz, private communication [1976]). 258 Ro b e R t Ka t z i n Nu c l e a r IN s t r u m e N t s a N d me t h o d s 163 (1979) A simple approximation to the “visual width” of particle tracks is given by Katz and Kobetich 5 as