Non-thermal effects on the soft-photon transition bremsstrahlung radiation due to polarization interactions in generalized Lorentzian plasmas

Abstract

The non-thermal effects on the soft-photon transition bremsstrahlung radiation due to the interaction between the electron and the polarized Debye sphere are investigated in generalized Lorentzian plasmas. The impact parameter method with the effective interaction potential taking into account the non-thermal character is applied to obtain the bremsstrahlung radiation cross section as a function of the impact parameter, Debye length, photon energy, projectile energy and spectral index of the generalized Lorentzian plasma. It is shown that the non-thermal effects enhance the maximum value of the bremsstrahlung radiation cross section. It is also found that the non-thermal effects increase the bremsstrahlung radiation cross section. In addition, it is shown that the nonthermal effect on the bremsstrahlung radiation cross section decreases with increasing Debye length.

Characteristics of Transition Bremsstrahlung Spectrum and Gaunt Factor: Thermal Shielding

“…The bremsstrahlung radiation process [1][2][3][4][5][6][7][8][9][10][11] in plasmas is known as the chief plasma diagnostic process because the continuous emission spectrum due to the electron-ion interactions in a plasma has provided useful information on various plasma parameters of the surrounding plasma. In addition to the conventional electron-ion bremsstrahlung process, the bremsstrahlung radiation due to the interaction between the plasma particle and the polarized plasma shielding cloud, known as the transition bremsstrahlung [12][13][14] process, has been of considerable interest because this process has provided useful information on the physical characteristics and properties of the plasma and the effective screening distance in plasmas.…”