New method of stopping power measurement for fast particles in metals and liquids

A new method of stopping power measurement for fast incident particles penetrating through solid and liquid targets is developed. In this method, thin cylindrical targets are employed and it enables us to obtain the stopping powers in a rather wide range of projectile energies according to a certain incident energy. In this report, we demonstrate our recent experimental results for a metal wire of Al and liquid water and ethanol obtained using a molecular jet technique. We also present here the results of secondary ion emission from liquid targets measured by this method.