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Showing 1 to 8 of 8 for “"Microwave interferometer"”.
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Microwave Interferometer and Refractometer for the WB-8 Polywell Fusion Device
… of the primary diagnostic tools will be a 94 GHz interferometer which will give a line average density measurement of a chord through the plasma. The rate at which ions take part in a fusion event depends heavily on the density, making the interferometer measurements vital in assessing the …
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Analysis and simulation of small scale microwave interferometer experiments on non-ideal explosives
… These small scale experiments utilize a 35 GHz microwave interferometer to measure the instantaneous shock and failing detonation wave velocities in explosives. Only those explosives which are transparent to the microwave radiation are evaluated, including ammonium nitrate plus fuel oil (ANFO). …
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Analysis of multifrequency interferometry in a cylindrical plasma
… by questions raised from multifrequency microwave interferometer measurements taken in a cylindrical plasma on the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) project. Standard data analysis based on a thin beam model neglecting refraction yields inconsistent electron …
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Density profiles of plasmas confined by the field of a Levitating Dipole Magnet
A 4-channel microwave interferometer (center frequency: 60 GHz) has been constructed to measure the density profiles of plasmas confined within the Levitated Dipole Experiment (LDX). LDX is the first and only experiment built to study plasmas confined by the field of a levitating, dipole magnet in …
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Microwave Interferometric Measurements of Electron Density in Laser-Generated Plasma Channels
… plasma channel have been made with a 9.2~Ghz microwave interferometer. The plasma channels were generated by sub-picosecond laser pulses ($\lambda=$248~nm, 40~mJ per pulse) produced by a hybrid Ti:sapphire/KrF excimer amplifier system. The ultrashort pulse duration resulted in a …
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Studies of oxygen-helium discharges for use in electric oxygen-iodine lasers
… using terminal current-voltage-characteristics, microwave interferometer measurements, and plasma emission intensity measurements. Numerous spectroscopic measurements of O2(a), oxygen atoms, and discharge excited states are made in order to describe the discharge performance dependent on various …
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Characterization of low-frequency density fluctuations in dipole-confined laboratory plasmas
… to the photodiode arrays, a four-channel microwave interferometer is used to estimate the density profile and to measure density fluctuations in the plasma. Several electrostatic probes, including a 24-channel floating probe array, measure fluctuations at the plasma edge and eight Mirnov …
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Dielectrophoresis study of electroporation effects on dielectric properties of biological cells
Electroporation affects the dielectric properties of cells. Dielectric measurement techniques can provide a label-free and non-invasive modality to study this phenomenon. In this thesis we introduce a dielectrophoresis (DEP) based technique to study changes in the cytoplasm conductivity of single …