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          Institute: MPI für Quantenoptik     Collection: Laser Plasma Physics     Display Documents

ID: 18255.0, MPI für Quantenoptik / Laser Plasma Physics
L-band x-ray absorption of radiatively heated nickel
Authors:Chenais-Popovics, C.; Fajardo, M.; Gilleron, F.; Teubner, U.; Gauthier, J. C.; Bauche-Arnoult, C.; Bachelier, A.; Bauche, J.; Blenski, T.; Thais, F.; Perrot, F.; Benuzzi, A.; Turck-Chieze, S.; Chieze, J. P.; Dorchies, F.; Andiel, U.; Fölsner, W.; Eidmann, K.
Date of Publication (YYYY-MM-DD):2002-01
Title of Journal:Physical Review E
Journal Abbrev.:Phys. Rev. E
Issue / Number:1
End Page:016413
Sequence Number of Article:016413
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Absorption of L-M and L-N transitions of nickel has been measured using point projection spectroscopy. The x-ray radiation from laser-irradiated gold cavities was used to heat volumetrically nickel foils "tamped with carbon" up to 20 eV. Experimental spectra have been analyzed with calculations based on the spin-orbit split arrays statistical approach and performed for each ionic species Ni5+ to Ni11+. Using a least- squares fit, this method provides an ion distribution broader than at local thermodynamic equilibrium, which is explained by spatial and temporal temperature gradients. A major improvement in the simulation of the absolute value of transmission is obtained with a resolved transition array statistical calculation that reproduces the experimental spectrum with the nominal areal mass density by taking into account the saturation of narrow lines.
External Publication Status:published
Document Type:Article
Communicated by:Klaus Witte
Affiliations:MPI für Quantenoptik/Laser Plasma
External Affiliations:Ecole Polytech, Lab Utilisat Lasers Intenses, UMR 7605 CNRS, F-91128 Palaiseau, France; Inst Super Tecn, Grp Lasers & Plasmas, Lisbon, Portugal; Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany; Lab Aimee Cotton, F-91405 Orsay, France; CEA Saclay, DSM DRECAM SPAM, F-91191 Gif Sur Yvette, France; CEA DAM, F-91680 Bruyeres Le Chatel, France; CEA Saclay, DSM DAPNIA SAp, F-91191 Gif Sur Yvette, France; INRS Energie, Varennes, PQ J3X 1S2, Canada;
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