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Article Dans Une Revue Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Année : 2020

A new 3D positioner for the analytical mapping of non-flat objects under accelerator beams

S. Schoeder
  • Fonction : Auteur
L. Rosta
  • Fonction : Auteur
J. Füzi
  • Fonction : Auteur

Résumé

We report the development of a 3D positioner for the elemental mapping of non-flat surfaces of heritage targets and its implementation in the external beam of the AGLAE accelerator, a joint research activity of the IPERION-CH European program. The positioner operates in two steps: 1) object surface is digitized using a 3D scanner implemented in the beamline. Surface points are interpolated onto a rectangular grid suitable for beam scanning. 2) Object is scanned under the beam using X/Y/Z stages holding a hexapod robot for rotations. During scanning, target surface is positioned with the Z stage and oriented perpendicular to the beam using hexapod rotations. Areas up to 100 × 100 mm2 with a resolution of 50 µm and 30° curvature of can be mapped on objects of 200 mm and 5 kg max. System operation was tested by recording PIXE maps on the polychrome decoration of a curved porcelain pot.

Domaines

Matériaux Chimie

Dates et versions

hal-04433370 , version 1 (01-02-2024)

Identifiants

Citer

Thomas Calligaro, L. Arean, C. Pacheco, Q. Lemasson, L. Pichon, et al.. A new 3D positioner for the analytical mapping of non-flat objects under accelerator beams. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2020, 467, pp.65-72. ⟨10.1016/j.nimb.2020.01.028⟩. ⟨hal-04433370⟩
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