Plasma Energy Transfer to Metal Surfaces Irradiated by Pulsed Lasers

AIAA Journal ◽  
1978 ◽  
Vol 16 (12) ◽  
pp. 1296-1304 ◽  
Author(s):  
A. N. Pirri ◽  
R. G. Root ◽  
P. K. S. Wu
Keyword(s):  
Energy Transfer ◽  
Metal Surfaces ◽  
Pulsed Lasers ◽  
Plasma Energy

scholarly journals Nonclassical behavior of energy transfer from molecules to metal surfaces: Biacetyl(3nπ*)/Ag(111)

1985 ◽  
Vol 82 (1) ◽  
pp. 541-547 ◽  
Author(s):  
A. P. Alivisatos ◽  
D. H. Waldeck ◽  
C. B. Harris
Keyword(s):  
Energy Transfer ◽  
Metal Surfaces

Efficiency of Energy Transfer in a Small Plasma Focus Device

2005 ◽  
Vol 107 ◽  
pp. 95-98
Author(s):  
Dusit Ngamrungroj ◽  
Rattachat Mongkolnavin ◽  
Chiow San Wong
Keyword(s):  
Energy Transfer ◽  
Plasma Focus ◽  
Pressure Range ◽  
Initial Energy ◽  
Energy Transfer Efficiency ◽  
Plasma Focus Device ◽  
Transfer Efficiency ◽  
Plasma Dynamics ◽  
Plasma Energy ◽  
Basic Model

A study of energy transfer in a small plasma focus device has been carried out during its axial phase. The snow-plough model has been used in the simulation as a basic model for the calculation of plasma dynamics. The energy transferred to the plasma is calculated by considering the work done by the electromagnetic piston during the axial phase. It was found that the plasma energy calculated by this model agrees well with the experimental data within the pressure range of 1 mbar to 4 mbar if the mass shedding effect is included in the model. According to the present computation, the energy transferred into the plasma, in the case of a plasma focus with 2.3 kJ initial energy operated with nitrogen gas within the pressure range of 1 to 4 mbar, is between 224 J to 250 J. This corresponds to energy transfer efficiency of 9.6% to 10.7%. The mass shedding factor decreases from 0.23 to 0.069 with increasing pressure. Correspondingly, the energy transfer efficiency changes slightly at a higher pressure.

C60 excited state energy transfer to metal surfaces across distances below 3 nm

1997 ◽  
Vol 377-379 ◽  
pp. 1056-1060 ◽  
Author(s):  
Klaus Kuhnke ◽  
René Becker ◽  
Klaus Kern
Keyword(s):  
Energy Transfer ◽  
Excited State ◽  
Metal Surfaces ◽  
State Energy ◽  
Excited State Energy

Influence of a magnetic field on plasma energy transfer to material surfaces in edge-localized mode simulation experiments with QSPA-M

2019 ◽  
Vol 59 (8) ◽  
pp. 086023 ◽  
Author(s):  
I.E. Garkusha ◽  
V.A. Makhlai ◽  
Yu.V. Petrov ◽  
V.V. Chebotarev ◽  
D.V. Yelisyeyev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Energy Transfer ◽  
Simulation Experiments ◽  
Plasma Energy ◽  
Material Surfaces ◽  
Edge Localized Mode ◽  
Localized Mode

scholarly journals Efficiency of ablative plasma energy transfer into a massive aluminum target using different atomic number ablators

2015 ◽  
Vol 33 (3) ◽  
pp. 379-386 ◽  
Author(s):  
A. Kasperczuk ◽  
T. Pisarczyk ◽  
T. Chodukowski ◽  
Z. Kalinowska ◽  
W. Stepniewski ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Atomic Number ◽  
Radiation Transport ◽  
Laser System ◽  
Plasma Stream ◽  
Near Surface ◽  
Aluminum Target ◽  
X Ray ◽  
Plasma Energy ◽  
Wide Range

AbstractThis paper aims at investigation of efficiency of an ablative plasma energy transfer into a massive aluminum target using different atomic number ablators. For this reason, several target materials representing a wide range of atomic numbers (Z = 3.5–73) were used. The experiment was carried out at the iodine Prague Asterix Laser System. The laser provided a 250 ps pulse with energy of 130 J at the third harmonic frequency (λ3 = 0.438 μm). To study the plasma stream configurations a four-frame X-ray pinhole camera was used. The electron temperature of the plasma in the near-surface target region was measured by means of an X-ray spectroscopy. The efficiency of the plasma energy transport to the target was determined via the crater volume measurement using the crater replica technique. The experimental results were compared with two-dimensional numerical simulations where the plasma dynamics was based on the one-fluid, two temperature model, including radiation transport in diffusive approximation and ionization kinetics. It was shown that the plasma expansion geometry plays an important role in the ablative plasma energy transfer into the target.

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