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Showing 1 to 15 of 15 for “"theta pinch"”.
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Energy deposition into heavy gas plasma via pulsed inductive theta-pinch
… capacitive energy into plasma via formation in a theta pinch coil. To aid in this research, the Missouri Plasmoid Experiment Mk. I (and later Mk. II) was created.</p> <p>In the first paper, the construction of differential magnetic field probes are discussed. The effects of calibration setup on …
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Design and Characterization of a Theta Pinch Discharge for Atomic Emission Spectroscopy
… ability to directly sample solid materials. A theta pinch discharge was designed and constructed to create this magnetically compressed plasma. In the theta pinch geometry, magnetic compression is achieved by a pulsed, high current discharge through a coil. The coil encloses an insulated …
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Radial Electric Fields from Larmor Radius Effects in the Field-Reversed Theta Pinch
Made available in DSpace on 2017-07-06T18:48:37Z (GMT). No. of bitstreams: 3 Hu_Yuan_MS.pdf: 22313721 bytes, checksum: baf5783a195404ec322630d9dd3daae0 (MD5) Hu_Yuan_MS_ABS.pdf: 483756 bytes, checksum: bd4f2ed9f5673c6f0e126ccbee133e0a (MD5) license.txt: 4813 bytes, checksum: …
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Development of a Theta Pinch Discharge as a Sampling Source for Refractory Solids
The development of a previously designed theta pinch discharge was undertaken in order to improve its ability to sample solid materials. Of primary interest were nonconducting and refractory solids.
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Pre-ionization studies on the modular theta-pinch experiment for field-reversed configuration applications
… by breakdown studies conducted on the Modular Theta-pinch eXperiment (MTX). Observations made of inductively-coupled breakdown behaviour are consistent with the model's expectations, indicating that the model can be used to aid in design of inductively-coupled pre-ionization systems. The model …
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Effect of Loss-Cone-Like Scattering Transport on Particle Confinement and Rotation in the Field-Reversed Theta Pinch
The Field-Reversed Theta Pinch (FRTP) represents a promising confinement approach to fusion power. However some experiments have encountered rapid particle losses and plasma disruption after a period of increasing rotation frequency. The objective of the present research was to develop theoretical …
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Evaluation of the theta pinch as a sampling and excitation source for elemental analysis of solid refractory materials
Studies of a theta pinch discharge device were performed to assess its effectiveness as a sampling and excitation source for elemental analysis of refractory solids. Previous work demonstrated the ability of the discharge to produce spectra suitable for qualitative analysis, but quantitation could …
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Development of high energy pulsed plasma simulator for plasma-lithium trench experiment
… device, a pulsed plasma source utilizing a theta pinch in conjunction with a coaxial plasma accelerator has been developed. An overall objective of the project is to develop a compact device that can produce 100 MW/m2 to 1 GW/m2 of plasma heat flux (a typical heat flux level in a major …
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Supersonic self-similar screw-pinch plasma implosions
… and an entrained axial magnetic field (screw-pinch). These solutions represent a complete generalization of previous works done on the Z-pinch and $\Theta$-pinch schemes. The solutions presented herein represent a screw-pinch plasma with a diffuse current profile. Four separate plasma …
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Spectroscopic studies of hydrogen plasmas in a magnetic well
… times of plasmas in Andreoletti's modified theta-pinch apparatus are increased by the addition of an external D.C. field produced by a modified version of the "Tennis Ball Seam" conductor described by Larkin. The diagnostics used are all spectroscopic.
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Characterization of ion properties in a linear pulsed plasma-material interaction test stand
… components, a pulsed plasma source utilizing a theta pinch in conjunction with a coaxial plasma accelerator has been developed[1-3]. The ThermoElectric-driven Liquid-metal plasma-facing Structures (TELS) device will provide fusion-relevant plasma flux incident on structures with flowing liquid …
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Probe studies of plasma in a magnetic well
A modified theta pinch device proposed by Andreoletti has been investigated. Magnetic field measurements have revealed that the device produces a magnetic well with mirror ratio 1.06. Further magnetic probe measurements have enabled detailed description of the plasma dynamics in the central …
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The Velocity-Space Particle Loss in Field-Reversed Theta Pinches
A field-reversed theta pinch (FRTP) is a compact device for magnetic fusion. It has attracted much attention in recent years since encouraging experimental results have been obtained. However, the definite causes for the observed particle loss rate and plasma rotation are not well known. In this …
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Calculated and measured line intensity ratios of singly and doubly ionized nitrogen atoms in hydrogen plasma
… f-values have been calculated are generated in a theta pinch plasma, and an attempt is made to decide which of the two models accounts more accurately for the observed intensity ratios.