Download or read book PHOTOMICOGRAPHIC TECHNIQUE FOR MEASURING GRAIN DENSITIES OF HIGHLY IONIZED PARTICLE TRACKS IN NUCLEAR EMULSIONS. written by and published by . This book was released on 1962 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A TECHNIQUE FOR RAPID AND ACCURATE Measurement of gap lengths of nearly saturated particle tracks in nuclear emulsions is reported. The method consists of obtaining photomicrographs of particle tracks with a superimposed image of a calibrated eyepiece-micrometer disc. The gap lengths are measured to an accuracy of 1/4 micron.