Determining the potential based on Rutherford backscattering data and electron screening in nuclear fusion reactions

A technique for determining the interaction potentials of He⁺–W, Ta systems on the basis of experimental data on the Rutherford backscattering of accelerated particles at an angle of 165° is proposed. This method provides an opportunity to extend the range of short distances within which the experimentally determined potential is known to 0.005 au and calculate corrections for electron screening relevant to the measurement of cross sections of the d + d nuclear fusion reaction. These corrections agree closely with the experimental data.