High gain x-ray lasers pumped by transient collisional excitation
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)
We present recent results of x-ray laser amplification of spontaneous emission in Ne-like and Ni-like transient collisional excitation schemes. The plasma formation, ionization and collisional excitation can be optimized using two laser pulses of 1 ns and 1 ps duration at table-top energies of 5 J in each beam. High gain of 35 cm{sup -1} has been measured on the 147 Aa4d{yields}4p J=0{yields}1 transition of Ni-like Pd and is a direct consequence of the nonstationary population inversion produced by the high intensity picosecond pulse. We report the dependence of the x-ray laser line intensity on the laser plasma conditions and compare the experimental measurements with hydrodynamic and atomic kinetics simulations for Ne-like and Ni-like lasing.
- OSTI ID:
- 21202588
- Journal Information:
- AIP Conference Proceedings, Vol. 443, Issue 1; Conference: International conference on atomic processes in plasmas, Auburn, AL (United States), 23-26 Mar 1998; Other Information: DOI: 10.1063/1.56567; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
High gain x-ray lasers pumped by transient collisional excitation
Demonstration of X-Ray Amplification in Transient Gain Nickel-like Palladium Scheme