The determination of the neutral atom density in a high-pressure mercury discharge from the 253.7 nm self-reversed resonance line
H Elloumi; M Aubès; F Simonet; J J Damelincourt; H Elloumi; Centre de Physique des Plasmas et de leurs Applications de Toulouse, Université Paul Sabatier, ESA 5002, 118, route de Narbonne, 31062 Toulouse Cedex, France; M Aubès; Centre de Physique des Plasmas et de leurs Applications de Toulouse, Université Paul Sabatier, ESA 5002, 118, route de Narbonne, 31062 Toulouse Cedex, France; F Simonet; Centre de Physique des Plasmas et de leurs Applications de Toulouse, Université Paul Sabatier, ESA 5002, 118, route de Narbonne, 31062 Toulouse Cedex, France; J J Damelincourt; Centre de Physique des Plasmas et de leurs Applications de Toulouse, Université Paul Sabatier, ESA 5002, 118, route de Narbonne, 31062 Toulouse Cedex, France
Журнал:
Journal of Physics D: Applied Physics
Дата:
1997-07-07
Аннотация:
In this work the broadening of the red wing of the 253.7 nm resonance mercury line is used to determine the radial distribution of the neutral atom density in a high-pressure mercury discharge. Abel inversion allows resolution of the integral relation between the wavelength at the maximum intensity of the red-wing resonance line and the square of the neutral atom density. This method, which does not require the assumption of local thermodynamic equilibrium, is applied to the pressure range 0.2 - 5 bar. Results are compared with those obtained from the broadening of the 491.6 nm mercury line.
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