Energy shift of the Lβ2 line as an ionization diagnostic for the dense plasma in the PFRP
| Autor: | Katarzyna Słabkowska, N. R. Pereira, Ł. Syrocki, J. F. Seely, E. We¸der, B.V. Weber, Marek Polasik |
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| Rok vydání: | 2017 |
| Předmět: |
Nuclear and High Energy Physics
Chemical ionization Chemistry Thermal ionization Photoionization 01 natural sciences Ion source 010305 fluids & plasmas Atmospheric-pressure laser ionization Degree of ionization Physics::Plasma Physics Ionization 0103 physical sciences Physics::Atomic and Molecular Clusters Atomic physics 010306 general physics Instrumentation Electron ionization |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 408:248-252 |
| ISSN: | 0168-583X |
| Popis: | On modest ionization, the change in the photon energies of characteristic K- and L-lines from high-Z (Z ∼ 75 ) ions can be used as an ionization diagnostic (Slabkowska et al., 2014). Indeed, the line shape of the L β 2 line in a spatially resolved but time-averaged L-shell spectrum from a tungsten Plasma Filled Rod Pinch plasma suggested ionization states up to +28W. Here the L β 2 line is measured with nanosecond time resolution to determine the plasma’s ionization as it varies in time. Together with the plasma temperature from the black-body radiation and the pressure from the expansion history, such a measurement could eventually determine the plasma’s equation of state. |
| Databáze: | OpenAIRE |
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