In the present study, we will focus on the improvement of the ion density at the arc outlet. Efficiency increases are necessary to obtain effective remote deposition, in which the plasma source and target area are decomposed. Remote deposition is easier to control than non-remote deposition and therefore preferable. The increase in the ionisation outflow will be obtained by creating a nozzle shaped cylindrical arc channel. Simulations were used to obtain the results. The arc plasma expands supersonically into a low pressure vessel. To simulate the existence of the expansion, a Ma=0.9 boundary condition is implemented at the arc outle
