Radiation losses in Z-pinch plasma

We have estimated the rate of total radiation losses from argon Z-pinches. Radiation losses due to excitation, dielectronic recombination, bremsstrahlung, radiative recombination and also ionization are considered. Ions in each ionization stage are analyzed, and the effects of finite density is taken into account. Our pinch dynamics includes Joule heating, anomalous plasma resistance, plasma outflow in the z-direction, electron beam generation, magnetic field pressure and radiation losses. For discharge current I MA, the main radiation losses are associated with excitation. The effect of turbulent magnetic field is found essential in the later stage of the pinch.