Deuteron-nucleus integral cross-sections at energies above 20 MeV

An equation derived from optical model of nuclear interactions for description of integral deuteron-nucleus cross-sections with coefficients obtained by least squares fit to compiled experimental data is proposed. It includes a term reflecting the charge asymmetry of colliding nuclei in a form conserving the symmetry of the entire formula with respect to exchange of projectile and target nuclei. Calculations using the new equation are compared with the data available as well as other systematics.