The parameters of the depth profiles of As atoms implanted at 40-200 k
eV into titanium and titanium oxide were measured using standard RES t
echnique. The measured profile moments are compared with theoretical v
alues obtained with TRIM 91 program. The experimental projected ranges
are by 10-20% lower than the theoretical ones for both substrates. Th
e measured range stragglings mostly agree with theoretical predictions
with some exceptions where the differences up to 50% are observed. Fo
r Ti substrate, significantly slower, in comparison with TRIM predicti
on, increase of projected range and range straggling with increasing i
mplantation energy is observed.