Soft-x-ray amplification by lithium like ions in recombining hot plasmas

Journal Article · Wed Apr 01 04:00:00 EST 1987 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.4.000563· OSTI ID:6947100

Jaegle, P; Jamelot, G; Carillon, A; Klisnick, A; Sureau, A; Guennou, H

This paper describes calculations and experiments about soft-x-ray amplification by lithium like ions in recombining laser-produced plasmas. Time- and space-dependent population inversion densities calculated with a collisional-radiative model used as the postprocessor of a hydrodynamic code are reported. Amplification diagnostic accuracy in plasma experiments is discussed. Time-integrated and time-resolved measurements of gain are presented, especially at 105.7 A in lithium like aluminum. It is shown that, in a plasma produced by a 3-nsec laser pulse, the peak of amplified radiation occurs about 7 nsec after the top of the pulse. The maximum gain--length product measured previously was 2--2.5. A short description of a future experiment designed for producing a much larger gain is presented.

• Research Organization: Laboratoire de Spectroscopie Atomique et Ionique, Universite Paris-Sud, Batiment 350, 91405 Orsay, France
• OSTI ID: 6947100
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Journal Name: J. Opt. Soc. Am. B: Opt. Phys.; (United States) Vol. 4:4; ISSN JOBPD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM IONS
AMPLIFICATION
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EXPERIMENT PLANNING
GAIN
IONIZING RADIATIONS
IONS
LASER-PRODUCED PLASMA
LASERS
MATHEMATICAL MODELS
PLANNING
PLASMA
POPULATION INVERSION
RADIATIONS
RECOMBINATION
SOFT X RADIATION
SPECTRA
X RADIATION
X-RAY LASERS
X-RAY SPECTRA