RT info:eu-repo/semantics/article
T1 Ionization disequilibrium in K- and L-shell ions
A1 Bishel, D. T.
A1 Marley, E. V.
A1 Schneider, M. B.
A1 Liedahl, D. A.
A1 Heeter, R. F.
A1 Foord, M. E.
A1 Kemp, G. E.
A1 Frank, Y.
A1 Emig, J. A.
A1 Nilson, P. M.
A1 Chin, D. A.
A1 Rygg, J. R.
A1 Collins, G. W.
A1 Pérez Callejo, Gabriel
AB Time-gated Sc K-shell and Ge L-shell spectra are presented from a range of characterized thermodynamic states spanning ion densities of 1e19-1e20cm-3 and plasma temperatures around 2000eV. For the higher densities studied and temperatures from 1000 to 3000 eV, the Sc and Ge x-ray emission spectra are consistent with steady-state calculations from the modern atomic kinetics model SCRAM. At the lower ion densities achieved through plasma expansion, however, the model calculations require a higher plasma temperature to reproduce the observed Ge spectrum. We attribute this to ionization disequilibrium of the Sc because the ionization time scales exceed the hydrodynamic timescale when the inferred temperatures diverge.
PB American Institute of Physics
SN 1070-664X
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/64402
UL https://uvadoc.uva.es/handle/10324/64402
LA eng
NO Physics of Plasmas, Julio 2023, v. 30, p. 073303
NO Producción Científica
DS UVaDOC
RD 27-dic-2024