An understanding of the plasma edge and divertor is essential for predicting the performance of next-step machines such as ITER. Transport codes used to study the divertor behaviour  employ atomic physics data in two applications. The first is to predict the power radiated by the fuel and impurity atoms, which is carried out as a post-processing option, while the second use is in calculating the atomic power loss term. This forms part of the transport calculations and in D fuelled simulations it has been shown that the simulated temperatures are sensitive to this term . A new He II (He+) atomic database [3,4] is used to check the application of the atomic data in the EDGE2D code.