CLOSE-COUPLED CALCULATIONS OF P-ENERGIES AND APPLICATIONS TO JET PLASMAS(BE3+ COLLISIONS AT INTERMEDIATE AND HIGH)

The close-coupling method based on semiclassical impact parameter theo ry has been applied to p + Be3+ collisions in the range of proton impa ct energies from 30 keV through to 10 MeV. The cross sections for hydr ogen production, target excitation and ionization have been computed u sing two-centre Ao expansions with up to 55 atomic states and pseudost ates. The results can be used as reference data for further close-coup ling studies of the system as well as for assessing the validity range and accuracy of various perturbational models at both intermediate an d high energies. Applications to current plasma research at JET where accurate data are required for diagnostic purposes, are discussed.