High accuracy, high energy He-ERD analysis of H, D and T

A new analysis technique using high-energy helium ions for the simultaneous elastic recoil detection of all three hydrogen isotopes in metal hydride s ystems extending to depths of several mu m's is presented. Analysis shows t hat it is possible to separate each hydrogen isotope in a heavy matrix such as erbium to depths of 5 mu m using incident 11.48 MeV He-4 ions with a de tection system composed of a range foil and Delta E - E telescope detector. Newly measured cross-sections for the elastic recoil scattering of He-4 io ns from protons and deuterons are presented in the energy range 10-11.75 Me V for the laboratory recoil angle of 30 degrees. (C) 2000 Elsevier Science B.V. All rights reserved.