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Theory of High-Energy-Photon K-Shell Recombination Continuum Radiation From Z -Pinch Plasmas

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4 Author(s)
Velikovich, A.L. ; Plasma Phys. Div., Naval Res. Lab., Washington, DC, USA ; Apruzese, J.P. ; Davis, J. ; Thornhill, J.W.

This paper presents explicit analytical formulas relating the X-ray yields in various energy bins of the free-bound recombination continuum to the mass, temperature, dimensions, and confinement time of the plasma participating in the K-shell emission. Estimates based on these formulas support the idea that K-shell recombination continuum radiation of argon, titanium, and iron can be a viable alternative to the K-shell line radiation of higher atomic number ions for advancing the operation of Z-pinch plasma radiation sources into the warm X-ray photon energy range of 10-20 keV. The potential of the refurbished Z accelerator for generating multikilojoule radiation yields in this energy range via recombination continuum is assessed.

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Plasma Science, IEEE Transactions on  (Volume:38 ,  Issue: 4 )