IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340)
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Quantum extension of Child-Langmuir law
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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
Sheet shaped plasma production using microwave-plasma interaction with ECR region
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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
Enhanced Raman scattering of a rippled laser beam in laser-plasma interaction
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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
One atmosphere uniform glow discharge plasma (OAUGDP) reactor for plasma chemical vapor deposition (PCVD) of thin films
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Summary form only given. Plasma chemical vapor deposition (PCVD) can
economically form thin films, and films that cannot be created in any other way.
As a result, the production of PCVD coatings for microelectronics, optics, food
packaging, metallurgy, and other applications has been gaining importance over
the past 20 years. During this time, efforts have been made to understand the
chemical and ...
#Plasma chemistry #Atmosphere #Glow discharges #Inductors #Chemical vapor deposition #Sputtering #Plasma applications #Optical films #Coatings #Chemical technology
Measurement of the polar intensity distribution of X-ray emitted by a Z-pinch
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Summary form only given, as follows. The polar distribution of X-rays emitted by
a Z-pinch has been inferred from the darkening of radio chromic film exposed on
Double Eagle. For these measurements, a 3 cm wide film was mounted on a 72 cm
radius arc with one end at the mid plane of the 2 cm long Al wire pinch. The
width of the film was covered by three strips, 1 cm wide, of aluminized Kapton
foil ...
#Optical films #Optical filters #Artificial intelligence #Wire #Strips #Calibration
Improved magnetron injection guns for high power gyro devices
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Summary form only given. A continuing problem for high power gyrotrons is
nonuniform current emission from the electron gun. This problem was identified
at the University of Maryland several years ago during operation of a
gyroklystron operating at 600 kV. More recently, measurements of an electron gun
at the Plasma Fusion Center at NUT indicated that the current was varying by a
factor of 6 azimu...
#Magnetic devices #Guns #Plasma temperature #Gyrotrons #Current measurement #Plasma measurements #Electron beams #Cathodes #Electron emission #Klystrons
Finite element modeling of the Magnetic Reconnection Experiment (MRX)
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Summary form only given. The Magnetic Reconnection Experiment (Hsu, et al. Phys.
Plasmas, Vol, 8, pp. 1916-1928 (2001)) is modeled using a two dimensional finite
element code. MRX is a laboratory experiment designed to study magnetic
reconnection under well diagnosed controlled conditions. While of a much smaller
scale than the magnetosphere, this experiment allows a direct analysis of
several fun...
#Finite element methods #Magnetic reconnection #Maxwell equations #Plasma diagnostics #Plasma simulation #Plasma transport processes #Laboratories #Magnetosphere #Magnetic analysis #Heating
Carbon coating by double discharge pulsed electron beam generator
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Summary form only given, as follows. Double discharge pulsed electron beam
generator (DDPEBG), a method to generate intense electron beams by superposing
two discharges namely low pressure dc glow discharge and a high current pulsed
discharge has been used for carbon coating. The characteristics of the electron
beam generated as a result of this technique are its small diameter, high peak
current ...
#Coatings #Electron beams #Pulse generation #DC generators #Glow discharges #Character generation #Drilling #Pulsed laser deposition #X-ray lasers #Nanoscale devices
Time-resolved reflectivity and transmission measurements of a laser-heated ultrathin foil
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Summary form only given. Heating ultrathin foils with femtosecond laser pulses
provides an experimental test ground for the study of high-energy density
matter, in particular, for warm dense matter (WDM). Investigating the optical
properties with high temporal and spatial resolution yields information about
the AC conductivity of these nearly isochorically heated states. Theoretical
predictions fo...
#Reflectivity #Ultrafast optics #Optical pulses #Pulse measurements #Testing #Wavelength division multiplexing #Conductivity #Plasma properties #Plasma measurements #Laser modes
Three-dimensional PIC simulations and analysis of the operating characteristics of the three cell RITS
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Summary form only given. The Radiographic Integrated Test Stand (RITS) is the
next generation, inductive voltage adder accelerator being developed at Sandia
National Laboratories for driving high brightness flash radiographic
sources./spl I.bar/70 ns width, 1.35 MV, 8 Ohm pulses are generated in parallel
water dielectric pulse forming lines and are added in series with induction
cells to form a si...
#Analytical models #Space vector pulse width modulation #Radiography #Testing #Voltage #Life estimation #Feeds #Insulation #Laboratories #Brightness