Demonstration of X-Ray Amplification in Transient Gain Nickel-like Palladium Scheme
Journal Article
·
· Physical Review Letters
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
We report experimental results of x-ray amplification of spontaneous emission in a Ni-like transient collisional excitation scheme. The Ni-like plasma formation, ionization, and collisional excitation requires irradiation of a slab target by two laser pulses: a formation beam with 5J energy of 800ps duration and a pump beam of 5J energy in 1.1ps. A gain of 35 cm{sup {minus}1} and a gL product of 12.5 are measured on the 4d{r_arrow}4p J=0{r_arrow}1 transition for Ni-like Pd at 147{Angstrom} with an 8mm line focus. The high efficiency of this scheme at {open_quotes}table-top{close_quotes} laser energies is a direct consequence of the nonstationary population inversion produced by the high intensity picosecond pulse. {copyright} {ital 1998} {ital The American Physical Society}
- Research Organization:
- Lawrence Livermore National Laboratory
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 610622
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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