Analysis of high- n dielectronic Rydberg satellites in the spectra of Na -like Zn XX and Mg -like Zn XIX.
We have observed spectra from highly charged zinc ions in a variety of laser-produced plasmas. Spectral features that are Na - and Mg -like satellites to high- n Rydberg transitions in the Ne -like Zn XXI spectrum are analyzed and modeled. Identifications and analysis are made by comparison with highly accurate atomic structure calculations and steady state collisional-radiative models. Each observed Zn XX and Zn XIX feature comprises up to approximately 2 dozen individual transitions, these transitions are excited principally by dielectronic recombination through autoionizing levels in Na - and Mg -like Zn19+ and Zn18+. We find these satellites to be ubiquitous in laser-produced plasmas formed by lasers with pulse lengths that span four orders of magnitude, from 1 ps to approximately 10 ns. The diagnostic potential of these Rydberg satellite lines is demonstrated.
Lawrence Livermore National Laboratory, P. O. Box 808, L-41, Livermore, California 94550, USA.
K B
KB
Fournier
A Ya
AY
Faenov
T A
TA
Pikuz
A I
AI
Magunov
I Yu
IY
Skobelev
F
F
Flora
S
S
Bollanti
P
P
Di Lazzaro
D
D
Murra
V S
VS
Belyaev
V I
VI
Vinogradov
A S
AS
Kyrilov
A P
AP
Matafonov
M
M
Francucci
S
S
Martellucci
G
G
Petrocelli