Abstract The relativistic convergent close-coupling method is applied to calculate cross sections for electron scattering on atomic gallium.
The integrated and momentum-transfer cross sections for elastic scattering are presented from the 4s 24p 4P1/2,3/2 electronic states for incident energies between 0.03 eV and 1000 eV. 
Integrated excitation cross sections are also presented from these initial states to the 4s 24[d,f], 4s 25[s,p,d], 4s 26[s,p] and 4s 27s manifolds, as well as cross sections for excitation of the 4s 24p 4P1/2 state to the 4s 24p 4P3/2 state. 
Estimates were presented for the total single ionisation cross section and total cross section for scattering on gallium in the 4P1/2,3/2 states, including direct ionisation from the 4p, 4s and 3d electrons, and excitation−autoionisation contributions from 4s and 3d electrons.
The estimated total single ionisation cross section was found to agree well with existing experimental data.