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Experimental evidence and theoretical analysis of photoionized plasma under x-ray radiation produced by an intense laser
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10.1063/1.2946923
/content/aip/journal/pop/15/7/10.1063/1.2946923
http://aip.metastore.ingenta.com/content/aip/journal/pop/15/7/10.1063/1.2946923

Figures

Image of FIG. 1.
FIG. 1.

(a) Experimental setup of photoionized nitrogen plasma. (b) X-ray spectral emission of the thermal radiation through one of the observation windows measured at peak power with transmission grating spectrometer. Also shown is the Planck spectrum corresponding to a radiation temperature of .

Image of FIG. 2.
FIG. 2.

Spectra from the observation window of the nitrogen filled central cavity recorded by a grating spectrometer at (dashed line), (solid line), and (dotted line).

Image of FIG. 3.
FIG. 3.

Charge state fraction of nitrogen vs time with without radiation field on the left, and then with a radiation field of on the right.

Image of FIG. 4.
FIG. 4.

Emission spectrum (dotted line) by removing an empirical fit to the continuum (dashed line) from the observed data (, solid line) with the High-Resolution Analyze System.

Image of FIG. 5.
FIG. 5.

Emission spectra of (a) , (b) , and (c) from top to bottom. By comparison with atomic data from HULLAC for N V–N VII and O V–O VII, some lines are identified and marked in (a).

Image of FIG. 6.
FIG. 6.

Theoretical spectra of nitrogen with and from 10 to . Also shown for comparison is the emission spectrum of (after background subtraction).

Image of FIG. 7.
FIG. 7.

Dependence of the parameter on radiation temperature and electron temperature , on for (solid line on plane) and on for (solid line on plane) for .

Image of FIG. 8.
FIG. 8.

Theoretical spectra of nitrogen without radiation field and from 20 to . Also shown for comparison is the emission spectrum of (after background subtraction).

Image of FIG. 9.
FIG. 9.

Theoretical spectra of nitrogen with , from 0 to , and . Also shown for comparison is the emission spectrum of (after background subtraction).

Image of FIG. 10.
FIG. 10.

Theoretical spectra of nitrogen with , , and from 100% to 1%. Also shown for comparison is the emission spectrum of (after background subtraction).

Image of FIG. 11.
FIG. 11.

The combinations of and (squares) which can reproduce the experimental features (a) and (b) of the three benchmarks in Sec. IV. The square on the diagonal line represents LTE.

Image of FIG. 12.
FIG. 12.

Theoretical spectra of nitrogen with . Also shown for comparison is the emission spectrum of (after background subtraction).

Tables

Generic image for table
Table I.

The strongest lines having wavelengths around and .

Generic image for table
Table II.

The strongest lines having wavelengths around , , and .

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/content/aip/journal/pop/15/7/10.1063/1.2946923
2008-07-17
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental evidence and theoretical analysis of photoionized plasma under x-ray radiation produced by an intense laser
http://aip.metastore.ingenta.com/content/aip/journal/pop/15/7/10.1063/1.2946923
10.1063/1.2946923
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