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Density effects on bremsstrahlung radiation in quantum plasmas
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10.1063/1.4862560
/content/aip/journal/pop/21/1/10.1063/1.4862560
http://aip.metastore.ingenta.com/content/aip/journal/pop/21/1/10.1063/1.4862560
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The schematics of the bremsstrahlung scattering with and being the electron velocity and impact parameter. The colliding electron is observed by the experimenter at a distance, and at the angle, θ.

Image of FIG. 2.
FIG. 2.

The time variation of the parallel ( ) and perpendicular ( ) components of the ion force on scattered electron for given plasma and collision parameters and for the Coulomb (dotted-dashed curves), Thomas-Fermi (dashed curves), and extended quantum (solid curves) potentials. The hydrogen plasma  = 1 with a number-density  = 5.9 × 1023 g/cm–3 (  = 0.01) is assumed.

Image of FIG. 3.
FIG. 3.

The normalized FFB radiation spectrum for two different plasma number-density regimes of  = 1.27 × 1026 cm−3 with  = 0.06 (relevant to ICF in units of 10−6) and  = 5.9 × 1029 cm−3 with  = 1 (relevant to white-dwarf stars in units of 103) and for the Coulomb (dotted-dashed curves), Thomas-Fermi (dashed curves), and extended quantum (solid curves) potentials.

Image of FIG. 4.
FIG. 4.

Variations in spectral radiance of FFB radiation with respect to plasma number-density ((a), (b), (c) in units of 103, 102, and 10−6) and with respect to the atomic-number of ions ((d)) for the extended quantum (EQ) screened potential and for different plasma number-densities, such as for the typical white-dwarf star (a), the big planet cores (b), and inertial confinement fusion (c). The increase in the thickness of the curves indicates the increase in the varied parameter in each plot.

Image of FIG. 5.
FIG. 5.

Variation of the normalized bremsstrahlung differential cross-section with respect to the relativistic degeneracy parameter, and the transferred electron momentum, , for  = 1 and  = 0.1. The increase in the thickness of the curves indicates the increase in the varied parameter in each plot.

Image of FIG. 6.
FIG. 6.

Variation of the normalized bremsstrahlung differential cross-section with respect to the relativistic degeneracy parameter, and the scaled transferred electron momentum, , for  = 1 and  = 0.1.

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/content/aip/journal/pop/21/1/10.1063/1.4862560
2014-01-21
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Density effects on bremsstrahlung radiation in quantum plasmas
http://aip.metastore.ingenta.com/content/aip/journal/pop/21/1/10.1063/1.4862560
10.1063/1.4862560
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