(1) Laboratoire de la Matiére Condensée, Faculté des Sciences de Tunis, 1060 Campus Universitaire, Tunis, Tunisia;(2) Groupe de Recherche en Physique Atomique et Astrophysique, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia
Abstract:
We present, in this work a simple analytical expression of line emission in weakly non ideal plasma using a simplified quantum model. This formalism allows to explain the variations of the line widths with the density in a weakly non ideal plasma. We apply this model to plasma neutral helium lines HeI 6678 Å and HeI 5876 Å and explain the non linearity of the line width.Received: 17 January 2004, Published online: 4 May 2004PACS: 32.70.Jz Line shapes, widths, and shifts - 31.15.Lc Quasiparticle methods - 42.50.-p Quantum optics
