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

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...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2020-03, Vol.467, p.65-72
Main Authors: Calligaro, Thomas, Arean, L., Pacheco, C., Lemasson, Q., Pichon, L., Moignard, B., Boust, C., Bertrand, L., Schoeder, S., Thoury, M., Rosta, L., Szentmiklósi, L., Füzi, J., László, Z., Heirich, V.
Format: Article
Language:English
Subjects:
3D positioner
3D target
Chemical Sciences
Hexapod
Ion beam imaging
Material chemistry
Neutron imaging
Synchrotron imaging
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2020.01.028