ATOMIC　PROCESSES　IN　DISCHARGE　PLASMAS
 FOR　SOFT　X-RAY　AMPLIFICATION
 
 Shosuke  KARASHIMA,　　Takahisa  KOIKE,  Seiji  KOJIMA　and　Youich  MURAKAMI
 
 Science  University  of  Tokyo , Department  of  Electrical  Engineering ,
Shinjuku-ku , Tokyo 162-8601 , Japan
 
 The atomic processes in Z-pinch discharge Ne-like Ar plasmas and the
optimum conditions for soft x-ray laser amplification have been studied.
Radiation emission and absorption processes for the 3p-3s transition are
calculated using escape probabilities. The rate equations coupled with the
plasma fluid equations describe various atomic processes in particular ion
stages to lasing formation.