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Showing 1 to 20 of 537 for “"Plasmas"”.
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Kinetic modeling of low temperature plasmas: space and laboratory plasmas
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Radiation Transport in Low Pressure Plasmas: Lighting and Semiconductor Etching Plasmas
… molecular and atomic species in technological plasmas. In some products like lamps, the transport of radiation is an important design consideration. In other instances, such as semiconductor materials processing, the role of UV photons in surface processes is a side product and is poorly …
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Probes in gaseous plasmas
… gas have been used for the quantitative study of plasmas. The plasma parameters of interest are electron and ion temperature, electron and ion concentration, and plasma potential.
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Plasmas of Arbitrary Neutrality
The physics of partially neutralized plasmas is largely unexplored, partly because of the difficulty of confining such plasmas. Plasmas are confined in a stellarator without the need for a plasma current, and regardless of the degree of neutralization. The Columbia Non-neutral Torus (CNT) is a …
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Nonlinear Response of Plasmas to Electromagnetic Waves and Surface Wave Propagation in Magneto Plasmas
Made available in DSpace on 2014-12-04T21:03:33Z (GMT). No. of bitstreams: 1 6206250.pdf: 6391604 bytes, checksum: 017cd5b217842464a8dc61c85d4105ea (MD5) Previous issue date: 1962
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Radial equilibrium of toroidal plasmas.
Thesis. 1976. B.S.--Massachusetts Institute of Technology. Dept. of Physics.
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Electrostatic oscillations in inhomogeneous plasmas
… oscillations in inhomogeneous, one-dimensional plasmas is examined in several areas. First the question is considered regarding whether the Vlasov-Maxwell equations will allow a plasma system to evolve naturally toward a preassigned stationary, inhomogeneous state such as one of the …
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Laser diagnostics of non-equilibrium plasmas
In the context of the electrification of the chemical industry, this thesis sets itself the goal of studying two promising plasma reactors: a nanosecond repetitively pulsed (NRP) discharge and a microwave discharge. The NRP reactor has been investigated for the dissociation of CO2. The microwave …
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Laser-Produced Plasmas for Particle Acceleration
… (⇠102 MeV) over mm-distances in laser-produced plasmas. Among the prerequisites for this acceleration technique to produce electron beams are laser intensities higher than 1018W/cm2 and sub-ps laser-pulse durations, both of which have seen rapid development since the invention of chirped pulse …
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A study of microwave induced plasmas
In a microwave induced plasma (MIP) generated in argon under atmospheric pressure using slab-line and TM 10 cavities, the electron density (Ne), excitation and rotational temperatures, detection limit and matrix factor for nine elements and microwave impedance have been determined for a range of …
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Dusty plasmas with high electron depletion
Dusty plasmas with high electron depletion occur in a wide range of astrophysical and laboratory environments and constitute a strongly non-equilibrium plasma regime that is still not fully understood. In particular, the interaction of nanodust with the plasma, the resulting electron depletion, and …
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Early Dynamics of Ultracold Neutral Plasmas
… on the early-time dynamics of ultracold neutral plasmas. We use fluorescence spectroscopy to probe plasma dynamics on the nanosecond time scale. We determine the rms ion velocity during the initial plasma period. The initial ion acceleration is found as the time derivative of the ion velocity. We …
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H-Mode Transport of Tokamak Plasmas
Made available in DSpace on 2017-07-06T18:49:03Z (GMT). No. of bitstreams: 3 Kinsey_Jonathan_E_MS.pdf: 47934458 bytes, checksum: 423723ca42f8f3627b50a2cc02ddcedb (MD5) Kinsey_Jonathan_E_MS_ABS.pdf: 478782 bytes, checksum: 97c6d02980af95274ac760c1fcc6f788 (MD5) license.txt: 4813 bytes, checksum: …
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Electron Interactions in Cryogenic Helium Plasmas
Made available in DSpace on 2015-05-12T21:41:28Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6408381.PDF: 4187284 bytes, checksum: 9e1426669fe9023e1236bd737ee05aff (MD5) Previous issue date: 1964
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Optical Line Radiation From Uranium Plasmas
Made available in DSpace on 2014-12-14T06:26:04Z (GMT). No. of bitstreams: 1 7726707.pdf: 4318546 bytes, checksum: d577931c537335b244066f09ae81f5dc (MD5) Previous issue date: 1977
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Resonant Electromagnetic Modes in Gyroelectric Plasmas
Made available in DSpace on 2014-12-04T21:03:22Z (GMT). No. of bitstreams: 1 6104383.pdf: 2789381 bytes, checksum: bfde3b3ec0fac3d5cac6c5154d3eb9a0 (MD5) Previous issue date: 1961
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Internal energy relaxation in nitrogen plasmas
This work discusses the chemical kinetics of nitrogen molecules relaxing in a heat bath at constant temperature in a background gas composed of electrons and nitrogen atoms. The QCT (Quasi-Classical Trajectory) model recently developed at NASA Ames Research Center is used to study energy transfers …
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Recombination in low temperature helium plasmas
A study was made of the afterglows of plasmas produced in pure helium gas at atomic densities ~lo18 - lo19/cc . Qualitative observations were made at a gas temperature of 4.20K while most quantitative results were obtained at a gas temperature of 77 o K at a pressure of 9.5 Torr in a region of free …
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