Abstract
We have investigated the sensitivity of X-ray line intensities as a laser-plasma diagnostic by seeding Si in CH and PbO plasmas. The Si K X-ray spectrum is measured using both time-integrating and time-resolving spectrographs to investigate the effect of time averaging on the line intensities. The measured intensities are compared with theoretical estimates for an isothermal, isodensity plasma. Si line intensities vary with the Z of the plasma, as expected from simple scaling models, indicating the Si lines can be a good plasma diagnostic. The line intensities do not predict a unique temperature and density, but, instead, the inferred temperature and density vary, depending on the line ratio used. These variations are attributed to large spatial gradients of temperature and density in the plasmas. Problems in interpretation are discussed, as well as possible directions for future experiments.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 335-342 |
| Number of pages | 8 |
| Journal | Journal of Quantitative Spectroscopy and Radiative Transfer |
| Volume | 32 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1984 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Spectroscopy
- Atomic and Molecular Physics, and Optics
Cite this
X-ray spectroscopy from variable, Z laser-produced plasmas. / Kauffman, R. L.; Lee, R. W.; Matthews, Dennis L; Kilkenny, J. D.
In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 32, No. 4, 1984, p. 335-342.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - X-ray spectroscopy from variable, Z laser-produced plasmas
AU - Kauffman, R. L.
AU - Lee, R. W.
AU - Matthews, Dennis L
AU - Kilkenny, J. D.
PY - 1984
Y1 - 1984
N2 - We have investigated the sensitivity of X-ray line intensities as a laser-plasma diagnostic by seeding Si in CH and PbO plasmas. The Si K X-ray spectrum is measured using both time-integrating and time-resolving spectrographs to investigate the effect of time averaging on the line intensities. The measured intensities are compared with theoretical estimates for an isothermal, isodensity plasma. Si line intensities vary with the Z of the plasma, as expected from simple scaling models, indicating the Si lines can be a good plasma diagnostic. The line intensities do not predict a unique temperature and density, but, instead, the inferred temperature and density vary, depending on the line ratio used. These variations are attributed to large spatial gradients of temperature and density in the plasmas. Problems in interpretation are discussed, as well as possible directions for future experiments.
AB - We have investigated the sensitivity of X-ray line intensities as a laser-plasma diagnostic by seeding Si in CH and PbO plasmas. The Si K X-ray spectrum is measured using both time-integrating and time-resolving spectrographs to investigate the effect of time averaging on the line intensities. The measured intensities are compared with theoretical estimates for an isothermal, isodensity plasma. Si line intensities vary with the Z of the plasma, as expected from simple scaling models, indicating the Si lines can be a good plasma diagnostic. The line intensities do not predict a unique temperature and density, but, instead, the inferred temperature and density vary, depending on the line ratio used. These variations are attributed to large spatial gradients of temperature and density in the plasmas. Problems in interpretation are discussed, as well as possible directions for future experiments.
UR - http://www.scopus.com/inward/record.url?scp=0346110100&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0346110100&partnerID=8YFLogxK
U2 - 10.1016/0022-4073(84)90104-3
DO - 10.1016/0022-4073(84)90104-3
M3 - Article
AN - SCOPUS:0346110100
VL - 32
SP - 335
EP - 342
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
SN - 0022-4073
IS - 4
ER -