Atomic data for modelling of photo-pumped lasers

, have both investigated a photo-pumping scheme involving hydrogen-like aluminium, Al XIII, and lithium-like iron, Fe XXIV. The scheme detailed in [1] considered Ly-α2 (2p 1/2 -1s 1/2 ) radiation from Al XIII pumping the ground-state of Fe XXIV up to 5p levels, while [2] also takes into consideration Ly-α 1 (2p 3/2 -1s 1/2 ) radiation. The pumping part of the proposed scheme leads to collisional mixing between the other n = 5 levels, and it is from the population of these sub-levels that an inversion will occur and so lead to lasing. Gains are expected from transitions 5g - 4f ,5 f - 4d, 5d - 4p ,5 p - 4s.