Abstract
We report results of the study of warm plasmas generated by focusing 46.9 nm soft x-ray laser pulses of nanosecond duration onto Si, Cr and Ag targets. The absorption is dominated by single photon photoionization, resulting in plasmas that are significantly different from those created by visible lasers. Spectra from the soft x-ray laser-created plasmas agree with 1 ½ D simulations in showing that the Si plasmas are significantly colder and less ionized than the Cr and Ag plasmas, confirming that, in contrast to plasmas created by optical lasers, the plasma properties are largely dependent on the absorption coefficient of the target material.
Original language | English |
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Title of host publication | X-Ray Lasers 2008 - Proceedings of the 11th International Conference |
Editors | Ciaran L.S. Lewis, Dave Riley |
Publisher | Springer Science and Business Media, LLC |
Pages | 381-389 |
Number of pages | 9 |
ISBN (Print) | 9781402099236 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |
Event | 11th International Conference on X-Ray Lasers, 2008 - Belfast, United Kingdom Duration: Aug 17 2008 → Aug 22 2008 |
Publication series
Name | Springer Proceedings in Physics |
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Volume | 130 |
ISSN (Print) | 0930-8989 |
ISSN (Electronic) | 1867-4941 |
Conference
Conference | 11th International Conference on X-Ray Lasers, 2008 |
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Country/Territory | United Kingdom |
City | Belfast |
Period | 08/17/08 → 08/22/08 |
Funding
This work supported by NNSA under the Stewardship Science Academic Alliances program through U.S. DOE Grant #DE-FG52-06NA26152, using facilities from the NSF ERC Center for Extreme Ultraviolet Science and Technology, NSF Award Number EEC-0310717. M. Berrill acknowledges support from DOE CSGF under Grant No. DE-FG02-97ER25308.