Nickel-Like Samarium 4d-4p X-Ray Laser Gain in Laser Plasmas
DONG Guo-Xuan1, ZENG Jiao-Long2
1Department of Mathematical and Physical Sciences, National Natural Science Foundation of China, Beijing 100085
2National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Nickel-Like Samarium 4d-4p X-Ray Laser Gain in Laser Plasmas
DONG Guo-Xuan1;ZENG Jiao-Long2
1Department of Mathematical and Physical Sciences, National Natural Science Foundation of China, Beijing 100085
2National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Abstract： Populations of the 249 levels belonging to the ground configuration 3s23p63d10 and those of single excitations of a 3d, 3p or 3s electron to the orbitals of n=4 and 5 have been calculated for nickel-like samarium at temperatures from 300 to 1600eV and at densities from 1020 to 1022cm-3. The gain coefficients for possible x-ray laser lines are also determined under these plasma conditions. The possible laser lines are transitions from levels (3d-13/24d3/2)0 and (3d-15/24d5/2)0 to levels (3d-13/24p1/2)1, (3d-15/24p3/2)1 and (3d-13/24p3/2)1. The favourable plasma condition for x-ray lasers is at the temperature of about 800eV and at the density of approximately 5.0×1021cm-3.
2004, Vol. 21 
