RECOMBINATION PUMPING OF HELIUM-LIKE IONS IN A LASER-PRODUCED PLASMA

The results of detailed simulation of gain on the 3(1)D --> 2(1)P tran sitions of He-like carbon and aluminium at 267 angstrom and 46 angstro m respectively are presented. The system investigated is that of a rec ombining laser-produced plasma, cooled by expansion into vacuum. Gain coefficients of approximately 4 cm-1 are predicted. The He-like scheme is found to be comparable to the H-like, although there is evidence t hat the former may become the more favourable of the two as the system s are scaled to shorter wavelengths.