Calculation of Photon‐Absorption Coefficient in Laser‐Produced Hydrogen Plasmas

Quasicontiguous frequency-fluctuation model for calculation of hydrogen and hydrogenlike Stark-broadened line shapes in plasmas.

We present an analytical method for the calculation of shapes of Stark-broadened spectral lines in plasmas, applicable to hydrogen and hydrogenlike transitions (including Rydberg ones) with Δn>1. The method is based on the recently suggested quasicontiguous approximation of the static Stark line shapes, while the dynamical effects are accounted for using the frequency-fluctuation-model approach...

Hydrogen Fuel in Fusion Plasmas

Calculation Submarine Hydrodynamic Coefficient by Hybrid Method

Increase in the accuracy of hydrodynamic coefficient calculation cause to increase in the prediction of vessel maneuvering ability. Different methods of determining hydrodynamic coefficients will be effective in determining the accuracy of coefficients, especially in numerical simulation. In this paper, we do planar motion mechanism (PMM) test, oblique towing test, and rotating arm test simulat...

Collision Processes in Low-Temperature Hydrogen Plasmas

Collision processes among the constituents of low-temperature hydrogen plasmas (e,H,H,H,H2,H + 2 ,H + 3 ) play a key role in technical plasma applications as well as in the boundary regions of magnetically confined fusion plasmas. In this work a review of the current knowledge on their cross sections is presented. Collision processes of electronically and vibrationally excited species are also ...

Hydrogen line formation in dense magnetized plasmas

The formation of hydrogen lines in dense plasmas in the presence of a uniform magnetic field is studied. The theory is developed for physical conditions (temperature, electronic density, magnetic field) characteristic of those encountered in the atmospheres of magnetic Ap and Bp stars. This is the first treatment of this problem dealing simultaneously with the Stark effect due to the electric m...