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Computer simulation of a barium cloud expansion in the earth's magnetotail Computer simulation of a barium cloud expansion in the earth's magnetotail based upon parameters from the NASA CRRES mission (G-10 release). The figure shows a surface plot the barium density that is based upon a 2D Hall MHD code. Note that the barium shell is structured; the expanding barium is unstable to the Hall Rayleigh-Taylor instability.
Photograph showing an experiment using 1 MV protons from Gamble II that impinge on structural supports of a working telescope Gamble II is a pulsed power generator capable of producing 1 - 2 TW power pulses of 50 ns duration. This facility is used to produce high-intensity electron or ion beams, plasma radiating sources, and to study the physics of plasma opening switches. The photograph shows an experiment using 1 MV protons from Gamble II that impinge on structural supports of a working telescope. The resulting motion of the focal spot can be compared with numerical models of related phenomena from high doses of keV radiation in space.
The NRL high frequency microwave beam facility for rapid, high temperature processing of ceramic materials is powered by an 83 GHz, 15 kW CW Gycom Ltd. gyrotron. The NRL high frequency microwave beam facility for rapid, high temperature processing of ceramic materials is powered by an 83 GHz, 15 kW CW Gycom Ltd. gyrotron.
This figure illustrates the formation of an electron hole (dark blue contours) in the topside low-latitude ionosphere This figure illustrates the formation of an electron hole (dark blue contours) in the topside low-latitude ionosphere. This is a a new phenomenon that has been predicted using the NRL ionosphere model SAMI2 (Sami2 is Another Model of the Ionosphere).
The interaction of an ultrashort pulse laser with planar aluminum targets was investigated with a non-LTE radiation hydrodynamics model. The energy deposition for an obliquely incident P-polarized laser beam was calculated with a Helmholtz wave equation. A fraction of the absorbed energy was expended in the production of fast electrons, that were transported and deposited in the target. The energy spectrum of these electrons can have a significant effect on the temperature and density profiles in the vicinity of the laser deposition and deep in the target as shown below.
Contour plot depicting the radiative power from an argon Z-pinch implosion for a tilted-nozzle gas-puff in the DOUBLE EAGLE pulsed power facility at Physics International. The largest power levels are in the regions colored red. This plot was generated at the time of peak stagnation using a two dimensional non-LTE radiative transport code. The density and internal energy values used in this analysis were taken from a 2D MHD code which simulated the dynamics of the pinch from initialization through stagnation.
The Nike Laser is a 56-beam, 3kJ krypton-fluoride laser that is being developed for fusion reasearch. The facility is expected to demonstrate the ultra-uniform laser illumination required for high-gain pellet fusion. The photograph shows the final mirror array and the lens array that direct the laser beams onto target.
The Pharos III laser produces 1500 Joules with a peak power of 5 TW; the laser is used in high-power laser research, ultra-high Mach-number shocks and turbulence, and to study nuclear weapons effects.
The Electra laser amplifier.
Pawn is a test bed for developing high energy pulsed power generators based on inductive storage techniques. Pawn consists of 20 capacitors connected in parallel, storing 1 MJ at 44 kV charge. The capacitors are discharged into a vacuum inductor in 10 microsec, then converted into a high voltage (greater than 500 kV), fast (less than 100 ns) pulse using one or more opening switches.
Two figures representing simulations of chaos and control of a reaction diffusion system The two figures represent simulations of chaos and control of a reaction diffusion system. The top figure represents a chaotic attractor of one of the variables as a function of space and time. The time direction is along the bottom axis and the space direction is along the left axis. Notice that the reaction dominant regime lies in the middle third, where the bursting occurs, and is marked by yellow. The lower figure represents control of chaos. The control is implemented at the boundary, evidenced by the small controlling pulses on the lower left time axis. Instead of chaos, a small non-bursting periodic orbit is stabilized.
The Space Physics Simulation Chamber (SPSC) is a 1.8 meter diameter, 5 meter long stainless steel vacuum chamber with multiple plasma diagnostic access ports The Space Physics Simulation Chamber (SPSC) is a 1.8 meter diameter, 5 meter long stainless steel vacuum chamber with multiple plasma diagnostic access ports. It is maintained at pressures near 1e-6 Torr. It is used in a variety of space physics related studies including spacecraft charging, plasma instabilities, nonlinear particle dynamics, and microwave plasma source development. It is also used as a test facility for space flight instrumentation.
The T-cubed (T3) laser produces over 1 Joule in less than 1 picosecond The T-cubed (T3) laser produces over 1 Joule in less than 1 picosecond. The laser is used in basic laser-plasma research, advanced electron accelerator research, and in solid-state physics research.

Contour plot depicting the radiative power from an argon Z-pinch implosion for a tilted-nozzle gas-puff in the DOUBLE EAGLE pulsed power facility at Physics International.
Contour plot depicting the radiative power from an argon Z-pinch implosion for a tilted-nozzle gas-puff in the DOUBLE EAGLE pulsed power facility at Physics International. The largest power levels are in the regions colored red. This plot was generated at the time of peak stagnation using a two dimensional non-LTE radiative transport code. The density and internal energy values used in this analysis were taken from a 2D MHD code which simulated the dynamics of the pinch from initialization through stagnation.
Large Area Plasma Processing System: The LAPPS experiment seeks to develop a new form of plasma processing reactor Large Area Plasma Processing System: The LAPPS experiment seeks to develop a new form of plasma processing reactor. It is based on production of a sheet of high density plasma with an electron beam. Shown in the picture is the source region of a LAPPS system. The plasma generated in this chamber is only 1-cm thick and can be as wide as 1 m. Materials placed close to the plasma sheet can be modified either by removing material from the surface, such as etching silicone for integrated circuits, or by depositing material on the surface, such as for surface hardening or application of reflective coatings. The new technology has advantages over existing plasma processing techniques.

Image representing a prototype of an electrodeless discharge lamp.
Discharge Lamp: The bright spherical object is a plasma discharge driven by the helical excitation coil located on top of it. This represents a prototype of an electrodeless discharge lamp. The discharge is driven by the changing magnetic field generated by exciting the coil with a radio frequency voltage. The advantages of this type of lamp are the lack of electrodes in the discharge and the ability to control the discharge gas. The first leads to very long lifetime for the lamp and the second allows efficient generation of very white light. The technology will allow long lived white lights for military and civilian applications at considerable energy savings.