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Réalisation d'un dispositif de test de cibles pour la production d'ions radioactifs par la méthode ISOL

Abstract : In the ISOL (isotope separation on line) technique, a primary ion beam impinges on a thick target, the incident ions are stopped through fragmentation reactions that generate radioactive nuclei. As soon as they have collected enough electrons, the radioactive nuclei begin diffusing outside the target as radioactive atoms. In order to improve this diffusion the target is strongly heated. The radioactive atoms diffuse till a ion source that ionize them, they are then accelerated to form a secondary beam that is delivered to the experimental area. This work deals with the design of an equipment able to measure the diffusion capacities of various targets, it is made up of -) a high temperature (> 2300 K) oven that will contain the target, -) a ionization source for ionizing radioactive atoms and -) a target dispatcher able to introduce in the oven or remove from the oven any target of a set of 12 targets. This equipment has proved to be able to test during a single experiment several primary beams and target materials. Measurements will be performed in a sequential way for the different projectile-target couples which will assure very closed experimental conditions for each measuring campaign.
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https://tel.archives-ouvertes.fr/tel-00009664
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Submitted on : Monday, July 4, 2005 - 3:15:20 PM
Last modification on : Thursday, February 1, 2018 - 1:35:53 AM
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  • HAL Id : tel-00009664, version 1

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F. Durantel. Réalisation d'un dispositif de test de cibles pour la production d'ions radioactifs par la méthode ISOL. Physique Nucléaire Expérimentale [nucl-ex]. Conservatoire national des arts et metiers - CNAM, 2005. Français. ⟨tel-00009664⟩

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