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C. Résolution-spectrale:-couplage-avec-un, 140 3.4, p.144

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Q. Fournit, ´ evolution de la densité ionique en fonction du temps et de l'espace, ou, comme ici, de la densitédensitéélectronique n e et de la températuré electronique T e . Dans ce chapitre, l'entrée du code est assurée par le modèle simple d'expansion hydrodynamique

T. Le-code and . Peut-rendre-compte-de-l, ´ emission X de plasmas de différentes géométries Selon la géométrie considérée, différents fichiers sontàsontà paramétrer : ? param : pour les caractéristiques du calcul, ` a savoir pas de temps du calcul, pas de temps des fichiers de sortie, etc

. Le-fichier-d, entrée hydrodyn permet de spécifier le nombre et les caractéristiques des cellules considérées (couches de plasma) Les résultats présentés ontétéontété obtenus avec un pas de temps suffisamment petit pour nous assurer de la convergence des résultats

. Cependant, utilisation du code Transpec s'impose : une telle hypothèse de dépôt instantané d'´ energie n'est pas adaptéè a une utilisation correcte du code Transpec. En effet, ce dernier nécessite un temps minimum pour calculer les différentes populations d'´ etats responsables de l'´ emission X. C'est pourquoi l'´ emission X ne commence pasàpasà " 0 ps

. La-figure-4, 21 présente le profil temporel de l'´ emission intégrée enénergieenénergie (de 100à100`100à 6100 eV) Les conditions correspondent comme aux figures précédentesprécédentesà une températuré electronique initiale de 580 eV, un rayon d

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S. Discussion, 199 5.3.1 Modèle " nanoplasma, Profils temporels de n e et

X. Calcul-du-spectre-résolu-en-temps-de-l-'´-emission, 204 5.3.2.1 Spectre résolu en temps calculé, p.204

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