Event 

Title:
Seminars at the Accelerator - Development of the 3D ion beam analysis at the CENBG nanobeam line
When:
02.06.2011 - 02.06.2011
Where:
CMAM - Madrid
Category:
Informal seminars at the Accelerator

Description

Speaker:  Nuria Gordillo García

Development of the 3D ion beam analysis at the CENBG nanobeam line: STIM and PIXE tomography:

The use of ion microbeams as a probe for computed tomography has proven to be a powerful tool for the three-dimensional characterization of specimens a few tens of micrometers in size. At CENBG, this technique was initially developed for applications in cell biology on the previous micro-beam line. However, the recently installation of the high resolution focused beam line on the AIFIRA (“Applications Interdisciplinaires des Faisceaux d’Ions en Région Aquitaine”) facility has opened new perspectives. This nanobeam line, based on a doublet-triplet configuration of Oxford Microbeam Ltd. OM-50™ quadrupoles, offers the opportunity to focus protons, deuterons and alpha particles in the MeV energy range to a sub-micrometer beam spot.

The implementation of computed tomography on the nanobeam line has required a careful design of the analysis chamber, especially microscopes for precise sample visualisation and a step motor coupled to a goniometer ensures the rotation motion.

The beam line design and the tomography setup will be shown. Finally, first experiments on reference samples will show the capabilities of the technique in terms of spatial resolution and stability. The analysis of geological and biological samples will be also presented.

[1]  C. Habchi et al., Reconstruction of 3D ion beam micro-tomography data for applications in Cell Biology, Nucl. Instr. and Meth. B 267, 2107–2112, 2009.

[2] P. Barberet et al., First results obtained using the CENBG nanobeam line: Performances and applications, Nucl. Instr. and Meth. B (2011), doi:10.1016/j.nimb.2011.02.036

[3] N.Gordillo et al., Technical developments for computed tomography on the CENBG nanobeam line, Nucl. Instr. and Meth. B (2011), doi:10.1016/j.nimb.2011.02.032

Venue

CMAM
Venue:
CMAM   -   Website
Street:
Faraday 3, Campus de Cantoblanco
ZIP:
28049
City:
Madrid
Country:
Country: es

Description

The seminar takes place at the meeting room of the CMAM