Neutralization of protons in energetic collisions with hydrogen-like beryllium ions

A theoretical study of hydrogen production in collisions between protons and hydrogen-like beryllium ions Be3+ is reported, for a proton impact energy range between 100 keV and 3 MeV. Cross sections are obtained in close-coupled atomic-orbital calculations within the semiclassical impact parameter method. The presented results are relevant to design and interpretation of current experiments at JET where a substantial flux of neutral hydrogen is observed to be generated at the centre of the tokamak plasma.