Analysis of deuterium and lithium on titanium surface by NRA method

Concentrations of deuterium (D) and lithium (Li) in titanium (Ti) were meas ured with nuclear reaction analysis (NRA) method. With Delta E&E-counter-te lescope, proton peaks by the D(d,p)T and Li-6(d,p)Li-7 reactions were well resolved from continuous spectrum of alpha-particles by the Li-7(d,alpha n)alpha reaction. The yields of these protons were obtained and densities o f deuterium and lithium isotopes on the Ti surfaces were obtained. Isotopic ratio of lithium was determined by comparing the yield of Li-6(p,3He)alpha , Li-6(p,alpha) He-3 and Li-7(p,alpha)alpha reactions with proton beam bomb ardment. Deviation among the experimental values was about 9%. (C) 2000 Els evier Science B.V. All rights reserved.