TY - JOUR
T1 - Measurement of XUV-absorption spectra of ZnS radiatively heated foils
AU - Kontogiannopoulos, N.
AU - Bastiani-Ceccotti, S.
AU - Thais, F.
AU - Chenais-Popovics, C.
AU - Sauvan, P.
AU - Schott, R.
AU - Fölsner, W.
AU - Arnault, Ph
AU - Poirier, M.
AU - Blenski, T.
PY - 2007/5/1
Y1 - 2007/5/1
N2 - Time-resolved absorption of zinc sulfide (ZnS) and aluminum in the XUV-range has been measured. Thin foils in conditions close to local thermodynamic equilibrium were heated by radiation from laser-irradiated gold spherical cavities. Analysis of the aluminum foil radiative hydrodynamic expansion, based on the detailed atomic calculations of its absorption spectra, showed that the cavity emitted flux that heated the absorption foils corresponds to a radiation temperature in the range 55-60 eV. Comparison of the ZnS absorption spectra with calculations based on a superconfiguration approach identified the presence of species Zn6+-Zn8+ and S5+-S6+. Based on the validation of the radiative source simulations, experimental spectra were then compared to calculations performed by post-processing the radiative hydrodynamic simulations of ZnS. Satisfying agreement is found when temperature gradients are accounted for.
AB - Time-resolved absorption of zinc sulfide (ZnS) and aluminum in the XUV-range has been measured. Thin foils in conditions close to local thermodynamic equilibrium were heated by radiation from laser-irradiated gold spherical cavities. Analysis of the aluminum foil radiative hydrodynamic expansion, based on the detailed atomic calculations of its absorption spectra, showed that the cavity emitted flux that heated the absorption foils corresponds to a radiation temperature in the range 55-60 eV. Comparison of the ZnS absorption spectra with calculations based on a superconfiguration approach identified the presence of species Zn6+-Zn8+ and S5+-S6+. Based on the validation of the radiative source simulations, experimental spectra were then compared to calculations performed by post-processing the radiative hydrodynamic simulations of ZnS. Satisfying agreement is found when temperature gradients are accounted for.
KW - LTE-plasma
KW - Laser produced plasma
KW - Plasma mixture
KW - X-ray heated plasma
KW - XUV absorption spectroscopy
U2 - 10.1016/j.hedp.2007.02.011
DO - 10.1016/j.hedp.2007.02.011
M3 - Article
AN - SCOPUS:34248513156
SN - 1574-1818
VL - 3
SP - 149
EP - 155
JO - High Energy Density Physics
JF - High Energy Density Physics
IS - 1-2
ER -