journal article·2024-07-01Open access

Self-absorption model of Hg–TℓI high pressure discharge

Basma Ghrib, Mohamed Bouaoun, Hatem Elloumi

AIP Advances· Volume 14· Issue 7

Abstract

This paper deals with self-absorption in a cylindrical high-pressure Hg–TℓI discharge for which local thermodynamic equilibrium can be assumed. Calculations of the densities of species, especially thallium, have been performed using a parabolic temperature profile and a constant mercury/thallium ratio throughout the discharge tube. This paper focuses on studying the self-absorption thallium lines by comparing them to those of mercury. Particular attention has been paid to the study of the additive effects on the self-absorption of spectral intensities.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Vacuum and Plasma Arcs · Plasma Diagnostics and Applications · Metal and Thin Film Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

BP 1172-LaTICE Lab-ENSIT, University of Sfax-IPEIS , 3018 Sfax, Tunisia

References (11)

Show source-provided references
1. Abdennadher, T., “Etude experimentale des raies 546, 1 nm du’ mercure et 535-655 nm du thallium dans des decharges haute pression mercure et mercure dope,” These d’Universite, Universite Paul Sabatier, Toulouse, 1985.
2. Discrete ordinates method in the analysis of the radiative transfer in high intensity discharge lamps10.1088/0022-3727/38/22/008 ↗
3. Drakakis, E., “Comparaison des formalismes de bartels et des paramètres multiples. Application à l’étude de décharges mercure et mercure dopées à l’iodure de thallium,” Thèse d’Université, Université Paul Sabatier, Toulouse, 1988.
4. The determination of the neutral atom density in a high-pressure mercury discharge from the 253.7 nm self-reversed resonance line10.1088/0022-3727/30/13/010 ↗
5. Calculation of temperature profiles of high pressure electric arcs using the diffusion approximation for radiation transfer10.1016/0022-4073(69)90087-9 ↗
6. Salerno, N., “Etude des indicatrices d’intensités et des flux énergétiques pour les raies 546, 1 nm du mercure et 535 nm’ du thallium émises par des lampes’ a d’décharge haute pression,” Thèse d’Université, Université Paul Sabatier, Toulouse, 1985.
7. Mercury-free high-intensity discharge with high luminous efficacy and good colour rendering index10.1088/0022-3727/40/13/S04 ↗
8. Tauziede, J. M., “Diffusion et convection dans une lampe à décharge haute pression (mercure dopé),” Thèse d’Université, Université Paul Sabatier, 1986.
9. Atomic ratio effect on thermal behaviour of a Hg-TℓI discharge lamp
10. Numerical modelling of a HgTlI discharge lamp: Transport coefficients and thermodynamic properties10.1088/0022-3727/37/4/012 ↗
11. Arc constriction in lamps containing mercury and iodine10.1063/1.322179 ↗