Temperature and Expansion Energy of Laser Produced Plasmas

are given f o r three d i f ferent t emperatures . W e a s s u m e d a radiat ing v o l u m e V of 1 0 7 c m 3 which is a represen tative value f o r the v o l u m e o f the heat ing zone . T h e e l e c t r o n densit ies were taken f r o m the e x p r e s s i o n g iven in E q . ( 8 ) . P V is the total p o w e r of radiat ion emit ted b y the p l a s m a . F o r c o m p a r i s o n the laser p o w e r PL which is necessary to heat the p l a s m a u p to the ind i ca ted t e m p e r a t u r e is g iven. W e see f r o m this c o m p a r i s o n that in g e n e r a l rad iat ion losses m a y b e neg le c ted . On ly at l o w e lec t ron t empera tures and with targets with e l ements of h igh Z losses d u e to the l ine radiat ion are c o n s i d e r a b l e .