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Article Dans Une Revue Nucl.Instrum.Meth.A Année : 2021

HeCTOr: the $^3$He Cryogenic Target of Orsay for direct nuclear reactions with radioactive ion beams

A. Matta

Résumé

Direct nuclear reactions with radioactive ion beams represent an extremely powerful tool to extend the study of fundamental nuclear properties far from stability. These measurements require pure and dense targets to cope with the low beam intensities. The 3He cryogenic target HeCTOr has been designed to perform direct nuclear reactions in inverse kinematics. The high density of 3He scattering centers, of the order of 1020 atoms/cm2, makes it particularly suited for experiments where low-intensity radioactive beams are involved. The target was employed in a first in-beam experiment, where it was coupled to state-of-the-art gamma-ray and particle detectors. It showed excellent stability in gas temperature and density over time. Relevant experimental quantities, such as total target thickness, energy resolution and gamma-ray absorption, were determined through dedicated Geant4 simulations and found to be in good agreement with experimental data.
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Dates et versions

hal-03235646 , version 1 (09-02-2023)

Identifiants

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F. Galtarossa, M. Pierens, M. Assié, V. Delpech, F. Galet, et al.. HeCTOr: the $^3$He Cryogenic Target of Orsay for direct nuclear reactions with radioactive ion beams. Nucl.Instrum.Meth.A, 2021, 1018, pp.165830. ⟨10.1016/j.nima.2021.165830⟩. ⟨hal-03235646⟩
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