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New exotic beams from the SPIRAL 1 upgrade

Abstract : Since 2001, the SPIRAL 1 facility has been one of the pioneering facilities in ISOL techniques for reaccelerating radioactive ion beams: the fragmentation of the heavy ion beams of GANIL on graphite targets and subsequent ionization in the Nanogan ECR ion source has permitted to deliver beams of gaseous elements (He, N, O, F, Ne, Ar, Kr) to numerous experiments. Thanks to the CIME cyclotron, energies up to 20 AMeV could be obtained. In 2014, the facility was stopped to undertake a major upgrade, with the aim to extend the production capabilities of SPIRAL 1 to a number of new elements. This upgrade, which is presently under commissioning, consists in the integration of an ECR booster in the SPIRAL 1 beam line to charge breed the beam of different 1+ sources. A FEBIAD source (the so-called VADIS from ISOLDE) was chosen to be the future workhorse for producing many metallic ion beams. The charge breeder is an upgraded version of the Phoenix booster which was previously tested in ISOLDE. The performances of the aforementioned ingredients of the upgrade (targets, 1+ source and charge breeder) have been and are still being optimized in the frame of different European projects (EMILIE, ENSAR and ENSAR2). The upgraded SPIRAL 1 facility will provide soon its first new beams for physics and further beam development are undertaken to prepare for the next AGATA campaign. The results obtained during the on-line commissioning period permit to evaluate intensities for new beams from the upgraded facility.
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https://hal.archives-ouvertes.fr/hal-03024655
Contributor : Pierre Delahaye <>
Submitted on : Wednesday, November 25, 2020 - 10:26:31 PM
Last modification on : Friday, November 27, 2020 - 12:32:42 PM
Long-term archiving on: : Friday, February 26, 2021 - 8:31:49 PM

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P. Delahaye, M. Dubois, L. Maunoury, J. Angot, O. Bajeat, et al.. New exotic beams from the SPIRAL 1 upgrade. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2020, ⟨10.1016/j.nimb.2019.04.063⟩. ⟨hal-03024655⟩

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