NOTICE: Scitation Maintenance Tuesday, May 5, 2015

Scitation will be unavailable on Tuesday, May 5, 2015 between 3:00 AM and 4:00 AM EST due to planned network maintenance.

Thank you for your patience during this process.

banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Investigation of iron opacity experiment plasma gradients with synthetic data analysesa)
a) Contributed paper, published as part of the Proceedings of the 19th Topical Conference on High-Temperature Plasma Diagnostics, Monterey, California, May 2012.
Rent this article for
Access full text Article
1. S. Basu and H. M. Antia, Phys. Rep. 457, 217 (2008).
2. J. E. Bailey et al., Phys. Plasmas 16, 058101 (2009).
3. J. E. Bailey et al., Rev. Sci. Instrum. 79, 113104 (2008).
4. J. J. MacFarlane et al., Proceedings of International Symposium on Inertial Fusion Science and Applications 2003, Monterey, CA (2003), p. 457.
5. J. J. MacFarlane et al., High Energy Density Phys. 3, 181 (2007).
6. R. C. Mancini et al., Comput. Phys. Commun. 63, 314 (1991).
7. W. H. Press et al., Numerical Recipes in C: The Art of Scientific Computing, 2nd ed. (Cambridge University Press, New York, 1992).
8. T. Nagayama et al., Rev. Sci. Instrum. 79, 10E921 (2008).

Data & Media loading...


Article metrics loading...



Experiments have been performed at Sandia National Laboratories Z-facility to validate ironopacity models relevant to the solar convection/radiation zone boundary. Sample conditions were measured by mixing Mg with the Fe and using Mg K-shell line transmission spectra, assuming that the plasma was uniform. We develop a spectral model that accounts for hypothetical gradients, and compute synthetic spectra to quantitatively evaluate the plasma gradient size that can be diagnosed. Two sample designs are investigated, assuming linear temperature and density gradients. First, Mg uniformly mixed with Fe enables temperature gradients greater than 10% to be detected. The second design uses Mg mixed into one side and Al mixed into the other side of the sample in an attempt to more accurately infer the sample gradient. Both temperature and density gradients as small as a few percent can be detected with this design. Experiments have successfully recorded spectra with the second design. In future research, the spectral model will be used to place bounds on gradients that exist in Z opacityexperiments.


Full text loading...

This is a required field
Please enter a valid email address

Oops! This section, does not exist...

Use the links on this page to find existing content.

752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigation of iron opacity experiment plasma gradients with synthetic data analysesa)