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AbstractAbstract
[en] Physical and geometrical conditions allowing a first approximation of necessary sizes to numerical integration of the ions movement equations subjected to electrical and magnetic crossed fields and space charge action are investigated here. To take into consideration the effect of the last one, two artifices are put forward: replacing charged particles by equivalent particles in calculating the coulomb force, electrical field calculation produced in different points situated on the beam envelope by the uniform charges distribution
[fr]
On analyse les conditions physiques et geometriques permettant une premiere approximation de grandeurs necessaires a l'integration numerique des equations de mouvement d'ions soumis aux champs electrique et magnetique croises et a l'action de la charge d'espace. Pour tenir compte de l'influence de celle-ci, on propose deux artifices: le remplacement des particules chargees par des particules equivalentes en calculant la force coulombienne exercee sur elles, le calcul du champ electrique produit dans differents points situes sur l'enveloppe du faisceau, par une distribution uniforme de chargesOriginal Title
Calcul de trajectoires d'ions dans un faisceau a trois dimensions soumis a la charge d'espace. Application aux sources d'ions
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Apr 1978; 28 p
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