Experimental Studies of Positron Scattering Using a Weak Radioactive Isotope

Various positron scattering data obtained by the experimental method using a weak radioactive isotope have been presented. The systematic comparative studies of total cross sections (TCSs) for positron and electron impacts are mainly presented, together with discussions on the ratios of the TCSs for positrons to those for electrons at low energies, and the polarization effect as the interaction between a target gas and a projectile. The cross section data for electronic and vibrational excitations are also described as a comparative study for positron and electron impacts. Ps formation cross sections for many molecules measured by a novel method are presented as percentage ratios to the TCSs. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.