Modeling of X-ray resonance lines emitted from laser produced copper plasma

Some characteristics of the picosecond laser produced plasma expanding across an externally applied magnetic field (0.6T) have been reported. Two to three times enhancement in X-ray emission from copper plasma has been observed for the laser intensity range ∼5 X 1011 to 5 X 1012 W/cm2. The X-ray yield has been found to increase with an increase in the magnetic field intensity. Enhancement in X-ray emission is correlated with confinement of expanding plasma either in external magnetic field or in high ambient gas pressure. Generation of some highfrequency instability and fast ions was also observed in the plasma along with bouncing of plasma near the β = 1 surface where kinetic pressure of plasma equals magnetic pressure.

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The K X-ray line structures for a warm dense copper plasma

High Energy Density Physics ◽

10.1016/j.hedp.2015.03.005 ◽

2015 ◽

Vol 15 ◽

pp. 8-11 ◽

Cited By ~ 3

Author(s):

K. Słabkowska ◽

E. Szymańska ◽

Ł. Syrocki ◽

J. Rzadkiewicz ◽

M. Polasik

Keyword(s):

X Ray ◽

Copper Plasma

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X-ray Spectra from Weakly Ionized Linear Copper Plasma

Japanese Journal of Applied Physics ◽

10.1143/jjap.45.5301 ◽

2006 ◽

Vol 45 (6A) ◽

pp. 5301-5306 ◽

Cited By ~ 21

Author(s):

Eiichi Sato ◽

Yasuomi Hayashi ◽

Rudolf Germer ◽

Etsuro Tanaka ◽

Hidezo Mori ◽

...

Keyword(s):

X Ray ◽

Weakly Ionized ◽

Copper Plasma

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Optimization of parameters of a copper plasma jet produced at the plasma focus device

Laser and Particle Beams ◽

10.1017/s0263034617000520 ◽

2017 ◽

Vol 35 (4) ◽

pp. 561-568 ◽

Cited By ~ 2

Author(s):

A. Kasperczuk ◽

M. Paduch ◽

K. Tomaszewski ◽

R. Miklaszewski ◽

K. Jach ◽

...

Keyword(s):

Plasma Focus ◽

Small Diameter ◽

Plasma Jet ◽

Plasma Sheath ◽

Plasma Focus Device ◽

Optimization Of Parameters ◽

X Ray ◽

Preliminary Information ◽

Hydrodynamic Code ◽

Copper Plasma

AbstractThe paper is aimed at optimization of parameters of a copper plasma jet produced at the DPF-1000U device, in which the inner electrode face was conically shaped. Preliminary information was obtained by numerical simulations of the plasma jet creation for different copper cones with the use of the two-dimensional magneto-hydrodynamic code KAROL. The simulations suggested that the cone height in the range of 4–7 cm should ensure a good plasma jet quality. The experimental data delivered by means of a 16-frame laser interferometer and a four-frame X-ray pinhole camera fully confirmed this conclusion. In the paper, we demonstrate the results for a 5 cm height cone. The eroded Cu plasma, swept up by the deuterium plasma sheath, was accelerated axially and compressed to very small diameter (3 mm) with an electron density of 7 × 1018 cm−3. The Cu plasma jet achieved a velocity of 5 × 107 cm/s and reached in the period of about 230 ns a distance (length) of 7 cm. The above results prove a successful adaptation of the plasma focus device to the metallic plasma jet generator.

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