Development of a highly mobile and versatile large MA-XRF scanner for in situ analyses of painted work of arts

Emeline Pouyet, Nicholas Barbi, Henry Chopp, Owen Healy, Aggelos Katsaggelos, Sophia Moak, Rick Mott, Marc Vermeulen, Marc Walton*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A new portable macro X-ray fluorescence scanner has been specifically designed for in situ, real-time elemental mapping of large painted surfaces. This system allows scanning 80 × 80 × 20 cm3 along the X, Z, and Y directions, respectively, with adaptive beam size at the energy of the Rh Ka-line. The detection system consists of a 50 mm2 active area detector coupled to a CUBE pre-amplifier and to the DANTE digital pulse processor (DPP) with adaptive shaping time. The system is controlled with a custom software including a graphical user interface (GUI) programmed in Python for real-time control of the stage, DPP, and camera of the scanner. This system allows considering new ways of sampling the object surface than the usual raster scanning in serpentine as well as a live elaboration of X-ray data; technical details and performances of the scanner are presented in this paper together with an example of its application to investigate painted surface, illustrating the value of the developed instrument.

Original languageEnglish (US)
JournalX-Ray Spectrometry
DOIs
StateAccepted/In press - 2020

ASJC Scopus subject areas

  • Spectroscopy

Fingerprint Dive into the research topics of 'Development of a highly mobile and versatile large MA-XRF scanner for in situ analyses of painted work of arts'. Together they form a unique fingerprint.

Cite this