Recombination in dense plasma

Calculations for He+-like ions of charge Z = 1 and 10 indicate that the effects of continuum lowering upon the total rate of recombination of plasma ions are important when the plasma temperature and density satisfy the inequality Nsub(e)>1014ZTcm-3. The calculations also show that collisional interruption of the dielectronic recombination process does not significantly alter the net recombination rate, but that it can substantially reduce the intensities of satellite x-ray lines. As examples, helium-like satellite lines produced by C+4 and Na+9 are considered in detail. (author)