2D numerical modelling of gas temperature in a nanosecond pulsed longitudinal He-SrBr2 discharge excited in a high temperature gas-discharge tube for the high-power strontium laser

5th International Workshop & Summer School on Plasma Physics 2012

Chernogorova, T.P.^1 ; Temelkov, K.A.^2 ; Koleva, N.K.^2 ; Vuchkov, N.K.^2

Faculty of Mathematics and Informatics, Sofia University, 5 James Bourchier Blvd., Sofia

1164, Bulgaria^1

Metal Vapour Lasers Laboratory, Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia

1784, Bulgaria^2

关键词: 2d numerical modelling;    Active volumes;    Axial symmetry;    Gas temperature;    High temperature;    High temperature gas;    Laser parameters;    Nanosecond pulse;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/715/1/012005/pdf
DOI  :  10.1088/1742-6596/715/1/012005

来源: IOP

【 摘 要 】

An active volume scaling in bore and length of a Sr atom laser excited in a nanosecond pulse longitudinal He-SrBr2discharge is carried out. Considering axial symmetry and uniform power input, a 2D model (r, z) is developed by numerical methods for determination of gas temperature in a new large-volume high-temperature discharge tube with additional incompact ZrO2insulation in the discharge free zone, in order to find out the optimal thermal mode for achievement of maximal output laser parameters. A 2D model (r, z) of gas temperature is developed by numerical methods for axial symmetry and uniform power input. The model determines gas temperature of nanosecond pulsed longitudinal discharge in helium with small additives of strontium and bromine.