IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340)
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Quantum extension of Child-Langmuir law
- Trang 172
Summary form only given, as follows. In the advent fields of nano-technology,
electrode gaps with scales down to nanometer regime can be fabricated. On such a
nano scale, quantum effects such as electron tunneling and the electron
exclusion principle become important in the study of beam-gap interaction. We
extend the classical Child-Langmuir law into the quantum regime including the
effects of el...
#Electrodes #Electron beams #Tunneling #Voltage #Plasmas #Equations #Current density #Matter waves #Solid modeling #Geometry
Enhanced Raman scattering of a rippled laser beam in laser-plasma interaction
- Trang 115
Summary form only given, as follows. In the laser-plasma interaction
experiments, self-focusing and filamentation affect quite a large number of
other parametric processes including stimulated scattering processes. It has
also been experimentally observed that SRS is more prone to the nonlinearly
refraction-induced enhancement in the intensity of the filaments. This situation
is qualitatively well...
#Raman scattering #Laser beams #Laser excitation #Laser modes #Particle beams #Electron beams #Plasma waves #Magnetic fields #Optical coupling #Optical refraction
Sheet shaped plasma production using microwave-plasma interaction with ECR region
- Trang 320
Summary form only given. To control the shape of high density plasma has been
one of the issues for the application of plasma to industrial usages. Therefore,
ECR plasma is a good candidate of a high density plasma. A sheet shaped high
density plasma could be used to modify the surface of materials uniformly and as
the basis for electron accelerators. The discharge parameters, such as ECR
conditio...
#Production #Plasma density #Plasma accelerators #Plasma applications #Plasma materials processing #Plasma waves #Plasma measurements #Shape control #Magnetic field measurement #Industrial control
Electron density and electron temperature in argon microhollow cathode discharges
- Trang 193
Summary form only given, as follows. Direct current microhollow cathode
discharges (MHCDs) operated in noble gases and in mixtures of rare gases and
halides have been shown to emit excimer radiation with efficiency in the 0.5-10%
range. Even higher values in efficiency have been obtained (20% in xenon) when
the discharge was pulsed with 20 ns pulses. These relatively high values
indicate a substan...
#Argon #Cathodes #Plasma temperature #Plasma measurements #Gases #Density measurement #Hydrogen #Electron emission #Xenon #Atomic measurements
Dielectric breakdown in plasma-polymerized aniline film
- Trang 291
Summary form only given, as follows. Plasma-polymerized films have been
considered for use in applications such as photoemission, electron field
emission displays, low dielectric constant material used for microelectronic
interlayer dielectrics, and as protective coatings for superconductors.
Molecules used as the monomer feed material have become high in molecular weight
and complex in structure ...
#Dielectric breakdown #Electrodes #Plasma applications #Indium tin oxide #Cathodes #Plasma displays #Plasma materials processing #Superconducting films #Dielectric materials #Superconducting materials
Hybrid drift instabilities and energy coupling in long-risetime Saturn, aluminum, implosions
- Trang 155
Summary form only given, as follows. Two recent series of Al:Mg wire array
Z-pinch experiments were conducted on the Saturn pulse-power generator, which
was operated in a long pulse-risetime mode. In these experiments, in which
current risetimes were in excess of 150 ns, absorbed energy enhancements were
observed that varied between factors of 2 to 4 times the energy input expected
from j/spl time...
#Saturn #Aluminum #Conductivity #Plasma temperature #Heating #Wire #Pulse generation #Magnetic fields #Fluid dynamics #Electric resistance
LASNEX simulations of ETA-II and laser target experiments
- Trang 303
Summary form only given, as follows. In order to have confidence in the
radiation converter target design for DARHT-II using LASNEX and our equation of
state (EOS) for Ta, we need to compare the LASNEX simulations with experimental
results from ETA-II and laser target experiments. ETA-II experiments include the
following measurements: integrated line density, plasma expansion velocity,
temperature...
#Plasma measurements #Plasma temperature #Plasma density #Plasma simulation #Optical design #Equations #Earth Observing System #Density measurement #Velocity measurement #Thermal expansion
On possibility of using periodic permanent magnetic structure to be initial energy source for a magneto-cumulative generator
- Trang 236
Summary form only given, as follows. In a lot of single-shot applications and
experiments at remote locations where magneto-cumulative generator provides the
most practicable power, it is impracticable to use a capacitor bank to be the
initial energy source. Gdovnina et al. (1996) has used a permanent magnets to be
the initial energy source to drive a magneto-cumulative generator, but the
energy d...
#Periodic structures #Capacitors #Permanent magnets #Laboratories #Artificial intelligence #Physics computing #Mathematics #Power generation #Magnetic analysis #Pulse compression methods
Time-averaged electron number density measurement of a one atmosphere uniform glow discharge plasma (OAUDGP) by absorption of microwave radiation
- Trang 271
Summary form only given. A simple and accurate technique for measuring the
time-averaged electron number density of a plasma at atmospheric pressure is
described. It is based on the angle-of-incidence dependent response of the
plasma absorption to the incident microwave signal. The method is applied to
determine the time-averaged electron number density of a One Atmosphere Uniform
Glow Discharge P...
#Electrons #Density measurement #Atmosphere #Glow discharges #Plasma density #Plasma measurements #Electromagnetic wave absorption #Plasma waves #Atmospheric-pressure plasmas #Microwave propagation
Studies of detached plasma in the ULS divertor simulator
- Trang 232
Summary form only given. We report on experimental and modelling studies of
"detached " plasma operation in the UMIST Linear System (ULS) divertor
simulator. The ULS is a device designed to study a range of edge plasma physics
issues relevant to tokamak gas target divertors and is capable of producing
steady-state plasmas with electron densities and temperatures in the range
10/sup 17/-10/sup 19/ ...
#Plasma simulation #Plasma temperature #Spontaneous emission #Plasma devices #Plasma density #Hydrogen #Electrons #Programmable logic arrays #Linear systems #Physics