Volumetric Plasma Source Development and Characterization
Title | Volumetric Plasma Source Development and Characterization PDF eBook |
Author | |
Publisher | |
Pages | 37 |
Release | 2008 |
Genre | |
ISBN |
The development of plasma sources with densities and temperatures in the 1015-1017 cm−3 and 1-10eV ranges which are slowly varying over several hundreds of nanoseconds within several cubic centimeter volumes is of interest for applications such as intense electron beam focusing as part of the x-ray radiography program. In particular, theoretical work [1,2] suggests that replacing neutral gas in electron beam focusing cells with highly conductive, pre-ionized plasma increases the time-averaged e-beam intensity on target, resulting in brighter x-ray sources. This LDRD project was an attempt to generate such a plasma source from fine metal wires. A high voltage (20-60kV), high current (12-45kA) capacitive discharge was sent through a 100 [mu]m diameter aluminum wire forming a plasma. The plasma's expansion was measured in time and space using spectroscopic techniques. Lineshapes and intensities from various plasma species were used to determine electron and ion densities and temperatures. Electron densities from the mid-1015 to mid-1016 cm−3 were generated with corresponding electron temperatures of between 1 and 10eV. These parameters were measured at distances of up to 1.85 cm from the wire surface at times in excess of 1 [mu]s from the initial wire breakdown event. In addition, a hydrocarbon plasma from surface contaminants on the wire was also measured. Control of these contaminants by judicious choice of wire material, size, and/or surface coating allows for the ability to generate plasmas with similar density and temperature to those given above, but with lower atomic masses.
Development and Characterization of Conventional and Inverted Helicon Plasma Sources
Title | Development and Characterization of Conventional and Inverted Helicon Plasma Sources PDF eBook |
Author | Benjamin Charles Masters |
Publisher | |
Pages | 220 |
Release | 2007 |
Genre | |
ISBN |
Development and Characterization of Tandem Plasma Sources for Direct Solids Analysis Via Atomic Emission Spectrometry
Title | Development and Characterization of Tandem Plasma Sources for Direct Solids Analysis Via Atomic Emission Spectrometry PDF eBook |
Author | Fu-He Li |
Publisher | |
Pages | 646 |
Release | 1997 |
Genre | Atomic emission spectroscopy |
ISBN |
Development and Characterization of Low-Power Plasma Facilities for Space Applications
Title | Development and Characterization of Low-Power Plasma Facilities for Space Applications PDF eBook |
Author | Helmut Koch |
Publisher | |
Pages | 0 |
Release | 2022 |
Genre | |
ISBN | 9783843951616 |
Construction and Characterization of an Extended Helicon Plasma Source
Title | Construction and Characterization of an Extended Helicon Plasma Source PDF eBook |
Author | Russell Ford Jr Jewett |
Publisher | |
Pages | 286 |
Release | 1995 |
Genre | Plasma (Ionized gases) |
ISBN |
The Development and Characterization of an Atmospheric Pressure Nonequilibrium Plasma Chemical Reactor
Title | The Development and Characterization of an Atmospheric Pressure Nonequilibrium Plasma Chemical Reactor PDF eBook |
Author | Kevin Gerard Donohoe |
Publisher | |
Pages | 522 |
Release | 1976 |
Genre | |
ISBN |
Design and Characterization of a Plasma Source for Ion Bombardment
Title | Design and Characterization of a Plasma Source for Ion Bombardment PDF eBook |
Author | Benjamin James Schultz |
Publisher | |
Pages | 136 |
Release | 2007 |
Genre | |
ISBN |