O-16 (d,p)

Although the (d,p) reaction is a well established technique to analyze oxygen the corresponding cross sections were measured only in a limited energy range for several scattering angles. The most often the (d,p₁)-reaction is employed for the analysis of thin oxide layers because the ¹⁶O(d,p₁)¹⁷O cross section is much higher than the cross-section for the reaction with a residual nucleus remaining in a ground state. However the ¹⁶O(d,p₀)¹⁷O reaction is also useful especially for thicker layers because protons from the ¹⁶O(d,p₁)¹⁷O reaction may have insufficient energy to exit from the deep inside the oxide layer. In addition due to higher Q-value for the ¹⁶O(d,p₀)¹⁷O reaction the p₀ spectrum is located in a background free region whereas the p₁ one may be obscured because of the interference from reaction products induced by deuterons interacting with different components in a sample. Only preliminary results are available at the moment for the evaluation of the cross-sections for ¹⁶O(d,p₀)¹⁷O and ¹⁶O(d,p₁)¹⁷O reactions.

Last update 06-06-2013