New external beam and particle detection set-up of Liège cyclotron – First applications of high energy beams to cultural heritage

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2012), 273

Improvements on the Liége cyclotron have yielded an energy resolution comparable to that of classic electrostatic accelerators. The latest upgrades of the High-Energy High-Resolution beam line (HE-HR) are ... [more ▼]

Improvements on the Liége cyclotron have yielded an energy resolution comparable to that of classic electrostatic accelerators. The latest upgrades of the High-Energy High-Resolution beam line (HE-HR) are presented which consist of the addition of both a new extraction nozzle for non-invasive in-air measurements and a new particle-detection setup developed to take full advantage of the increased probed thickness with depth sensitive analytical methods. The suitability of the new setup and the advantages provided by the larger flexibility in choosing both the proper particle with an extended energy available will be illustrated by discussing latest results of studies recently led on Roman gilding techniques on cultural heritage artifacts by means of “High-Energy” alpha backscattering spectrometry combined with PIXE. [less ▲]

Study of late Roman period gilded and patinated artifacts at the new external beam set-up of Liege cyclotron

Conference (2011, April)

Elemental 2D imaging of paintings with a XRF mobile system

Conference (2010, July)

Rapport Annuel 2010: Elemental 2D imaging of paintings with a mobile EDXRF system: detailed results

Report (2010)

Overview of recent Cultural Heritage applications on beam lines of the IPNAS cyclotron of Liège

Conference (2010)

Towards a TOF-based solution for beam energy measurements at Liege cyclotron facility – Conception and preliminary results

Poster (2010)

Towards X-ray production and Non-Rutherford cross-sections measurements for 6-20 MeV alpha particles : latest developments on the dedicated «STANDARD» vacuum chamber and first results

Poster (2010)

First applications of external beam mode RBS detection set up at the IPNAS cyclotron of Liege – Study of Roman gilding craftwork techniques

Poster (2010)

Preliminary experiments: High-energy alpha PIXE in archaeometry

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2010), 268(11-12), 1911-1915

This paper describes the work realized at the "Centre Europeen d'Archeometrie" to highlight the utility of high-energy alpha PIXE in the particular field of archaeometry and to introduce the developments ... [more ▼]

This paper describes the work realized at the "Centre Europeen d'Archeometrie" to highlight the utility of high-energy alpha PIXE in the particular field of archaeometry and to introduce the developments done and to be clone to complete the knowledge of high-energy alpha PIXE. It starts with the comparison of the yield and the noise background between several alpha particle beams and the comparison between alpha particle and proton beams on different thick and thin references. After, this paper depicts the developments done at the "Institut de Physique Nucleaire, Atomique et Spectroscopie" to perform such high-energy experiments, first on standards and later on cultural heritage objects. Moreover, it introduces the problematics of such beams for the quantification in PIXE by the intermediary of the knowledge of the ionization and X-ray production cross-sections and also the developments done to answer to this serious lack in the databases. (C) 2010 Elsevier B.V. All rights reserved. [less ▲]

Improved energy resolution of a cyclotron beam for RBS measurements

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2008), 266(10), 2110-2112