Dr. Radu Campeanu

Biography

Radu Campeanu is a Full Professor in the Faculty of Science at York University. His research specializes in atomic molecular collisions, particularly involving positrons. In recent years, the availability of intense positron beams has enabled an increase in the number of ionization experiments. His work has included studying noble gases and measuring ionization cross sections of atoms and molecules, as well as conducting triple differential cross section measurements. Campeanu employs theoretical models to replicate existing experimental cross sections, exploring total ionization cross sections and the use of distorted-wave models that incorporate realistic descriptions of final state system distortion and polarization effects. Additionally, he has expanded his research to investigate the phenomenon of electron-capture-in-the-continuum (ECC) as it relates to positron impact ionization of helium and molecular hydrogen. His theoretical models have produced results in good agreement with existing triple differential cross section experiments. In 2021, he focused on understanding significant body effects that compete to define the shape of triple differential cross section experimental data, demonstrating excellent theoretical results with atomic hydrogen targets.

Research Interests