Range-Momentum Relation for Heavy Recoil Ions in Emulsion

Abstract

The range-momentum relationship for Ag and Br ions ($\beta <0.04\mathrm{}$) in Ilford K.5 nuclear emulsion is given. The measurements were made using the elastic collisions of ${\mathrm{Ar}}^{40}$, ${\mathrm{Ne}}^{20}$, and ${\mathrm{C}}^{12}$ with nuclei of the emulsion. Mass separation between the Ag and Br (heavy) and the C, N, and O (light) recoil groups has been achieved by the method of least squares applied to the kinematics and by the grouping of the events on a range-momentum plot. The empirical range-momentum relationship is found to be