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4. La-face-arrière-de-la-cible, une fine couche d'aluminium. La partie réfléchie du sonde est ensuite enregistrée sur une caméra CCD. On obtient ainsi l'image du plasma d'aluminium créé par les électrons rapides dont nous pouvons déterminer les dimensions. La comparaison de l'intensité réfléchie mesurée expérimentalement avec la réflectivité décrite par un modèle simple (Benuzzi et al., 1998) nous permet ensuite de déduire la conductivité de ce plasma

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