Stopping Power of Various Gases for Lithium Ions of 100-450-kev Kinetic Energy

Abstract
The stopping power, expressed in electron volts per atom of gas per square centimeter has been measured in H2, He, air, and argon for lithium ions in the kinetic energy range 100-450 kev. Collisions which would have deviated the lithium ions as much as 103 radian would have removed them from the detector aperture, so that the measured stopping power arises entirely from electronic collisions. The following results were obtained: