- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Short-scalelength plasma spectroscopy
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Short-scalelength plasma spectroscopy Forsman, Andrew
Abstract
Traditional x-ray plasma spectroscopy techniques employ long scalelength laser-produced plasmas in an attempt to moderate the density and temperature gradients present in the ablation plasma. These approaches have the disadvantages that the large plasma may lead to significant opacity effects, lasers having substantial power must be used and numerical simulations of the laser-produced plasma frequently must be used to interpret the data. As an alternative technique the use of short-scalelength plasmas as sources for x-ray spectroscopy have been investigated. High-resolution silicon K-shell spectra from a short-scalelength, laser-produced plasma have been obtained in temporally and spatially integrated measurements. Density-sensitive line-intensity ratios of the helium like satellites and that of the lithium-like satellites are employed simultaneously with temperature-sensitive line-intensity ratios between the helium and lithium-like satellites to assess their diagnostic value. A constant, uniform plasma model is used to interpret the data. It appears that the emission of dielectronic satellite lines is dominated by a region with a relatively well-defined density and temperature in the ablation zone.
Item Metadata
Title |
Short-scalelength plasma spectroscopy
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
1992
|
Description |
Traditional x-ray plasma spectroscopy techniques employ long scalelength laser-produced
plasmas in an attempt to moderate the density and temperature gradients present in the
ablation plasma. These approaches have the disadvantages that the large plasma may
lead to significant opacity effects, lasers having substantial power must be used and
numerical simulations of the laser-produced plasma frequently must be used to interpret
the data. As an alternative technique the use of short-scalelength plasmas as sources
for x-ray spectroscopy have been investigated. High-resolution silicon K-shell spectra
from a short-scalelength, laser-produced plasma have been obtained in temporally and
spatially integrated measurements. Density-sensitive line-intensity ratios of the helium
like satellites and that of the lithium-like satellites are employed simultaneously with
temperature-sensitive line-intensity ratios between the helium and lithium-like satellites
to assess their diagnostic value. A constant, uniform plasma model is used to interpret
the data. It appears that the emission of dielectronic satellite lines is dominated by a
region with a relatively well-defined density and temperature in the ablation zone.
|
Extent |
1678621 bytes
|
Genre | |
Type | |
File Format |
application/pdf
|
Language |
eng
|
Date Available |
2008-12-15
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0086522
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
1992-11
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.