Time-resolved x-ray fluorescence of He-like ions in an aluminum-laser-produced plasma

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.2186· OSTI ID:7070820

Renaudin, P; Chenais-Popovics, C; Gauthier, J C ^[1]; Peyrusse, O ^[2]; Back, C A ^[3]

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1. Laboratoire pour l'Utilisation des Lasers Intenses, Ecole Polytechnique, 91128 Palaiseau (France)
2. Centre d'Etudes de Limeil-Valenton, 94195 Villeuneuve St. Georges Cedex (France)
3. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Quasiresonant photoexcitation and nonresonant photoionization of He-like ions in a two-component laser-produced plasma are demonstrated in the x-ray range. The pumping source is the x-ray emission of a high-[ital Z] plasma which modifies the populations of the excited states of an aluminum He-like plasma. Fluorescence of the 1[ital s]2[ital p]-1[ital s][sup 2] line at 7.757 A has been measured by time-resolved and time-integrated spectral measurements of the two plasma emissions. Photoionization results compare favorably with radiative transfer simulations which calculate the He-like 1[ital s]2[ital p]-1[ital s][sup 2] line transfer in the photopumped aluminum plasma.

• OSTI ID: 7070820
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Vol. 50:3; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
LASER-PRODUCED PLASMA
X-RAY FLUORESCENCE ANALYSIS
EXCITATION
ISOELECTRONIC ATOMS
OPTICAL PUMPING
PHOTOIONIZATION
RADIATIVE DECAY
TIME RESOLUTION
ATOMS
CHEMICAL ANALYSIS
DECAY
ELEMENTS
ENERGY-LEVEL TRANSITIONS
IONIZATION
METALS
NONDESTRUCTIVE ANALYSIS
PARTICLE DECAY
PLASMA
PUMPING
RESOLUTION
TIMING PROPERTIES
X-RAY EMISSION ANALYSIS
700380* - Elementary & Classical Processes in Plasmas- (1992-)
700320 - Plasma Diagnostic Techniques & Instrumentation- (1992-)