TY - JOUR
T1 - Soft x-ray spectral analysis of samarium plasmas produced by solid-state laser pulses
AU - Lokasani, R.
AU - Sheil, J.
AU - Barte, E.F.
AU - Hara, H.
AU - Tamura, T.
AU - Gisuji, T.
AU - Higashiguchi, T.
AU - Suzuki, C.
AU - Dunne, P.
AU - O'Sullivan, G.
AU - Limpouch, J.
PY - 2018/10/8
Y1 - 2018/10/8
N2 - © 2018 IOP Publishing Ltd.XUV spectra of 150 ps laser-produced samarium (Sm) plasmas in the 1.8-10 nm wavelength region, where Δn = 1, n = 4 - n = 5 and Δn = 0, n = 4 - n = 4 transitions dominate the observed emission, were investigated experimentally and theoretically. Ab initio calculations using the flexible atomic code, as well as consideration of isoelectronic trends, are all employed to identify a number of new features in spectra from Sm16+ to Sm34+. The results show that Δn = 0, n = 4 - n = 4 emission from highly charged ions merge to form an intense unresolved transition arrays in the 7.5 nm region and Δn = 1, n = 4 - n = 5 resonance transitions contribute in the 3-7 nm region of the Sm spectrum. In addition, a number of strong individual lines at shorter wavelengths are seen to arise from Cu- and Zn-like ions and a number of new assignments are made for Zn-like Sm32+.
AB - © 2018 IOP Publishing Ltd.XUV spectra of 150 ps laser-produced samarium (Sm) plasmas in the 1.8-10 nm wavelength region, where Δn = 1, n = 4 - n = 5 and Δn = 0, n = 4 - n = 4 transitions dominate the observed emission, were investigated experimentally and theoretically. Ab initio calculations using the flexible atomic code, as well as consideration of isoelectronic trends, are all employed to identify a number of new features in spectra from Sm16+ to Sm34+. The results show that Δn = 0, n = 4 - n = 4 emission from highly charged ions merge to form an intense unresolved transition arrays in the 7.5 nm region and Δn = 1, n = 4 - n = 5 resonance transitions contribute in the 3-7 nm region of the Sm spectrum. In addition, a number of strong individual lines at shorter wavelengths are seen to arise from Cu- and Zn-like ions and a number of new assignments are made for Zn-like Sm32+.
U2 - 10.1088/1361-6455/aae12d
DO - 10.1088/1361-6455/aae12d
M3 - Article
SN - 0953-4075
VL - 51
JO - Journal of Physics B. Atomic, Molecular and Optical Physics
JF - Journal of Physics B. Atomic, Molecular and Optical Physics
IS - 21
M1 - 215001
ER -