Measurement of temperature, density, and particle transport with localized dopants in wire-array Z pinches.
Axially localized NaF dopants are coated onto Al cylindrical wire arrays in order to act as spectroscopic tracers in the stagnated z-pinch plasma. Non-local-thermodynamic-equilibrium kinetic models fit to Na K-shell lines provide an independent measurement of the density and temperature that is consistent with spectroscopic analysis of K-shell emissions from Al and an alloyed Mg dopant. Axial transport of the Na dopant is observed, enabling quantitative study of instabilities in dense z-pinch plasmas.
Jones
B
B
Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. bmjones@sandia..gov
Deeney
C
C
McKenney
J L
JL
Ampleford
D J
DJ
Coverdale
C A
CA
Lepell
P D
PD
Shelton
K P
KP
Safronova
A S
AS
Kantsyrev
V L
VL
Osborne
G
G
Sotnikov
V I
VI
Ivanov
V V
VV
Fedin
D
D
Nalajala
V
V
Yilmaz
F
F
Shrestha
I
I