Multi-modal tomography to assess dechlorination treatments of iron-based archaeological artifacts

Heritage Science. 2019;7(1):1-14 DOI 10.1186/s40494-019-0266-x

 

Journal Homepage

Journal Title: Heritage Science

ISSN: 2050-7445 (Online)

Publisher: SpringerOpen

LCC Subject Category: Fine Arts | Science: Chemistry: Analytical chemistry

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB

 

AUTHORS

Mathieu Jacot-Guillarmod (Bern University of the Arts)
Katharina Schmidt-Ott (Collection Center, Swiss National Museum)
David Mannes (Paul Scherrer Institut)
Anders Kaestner (Paul Scherrer Institut)
Eberhard Lehmann (Paul Scherrer Institut)
Claire Gervais (Bern University of the Arts)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 19 weeks

 

Abstract | Full Text

Abstract Chloride ions are an important actor in the corrosion of iron-based archaeological artifact. To stop this degradation, excavated objects are subjected to dechlorination treatment. However, there is no guarantee that this will remove all chloride from the object, as some can be found deep inside the object. To assess the ability of dechlorination treatment to remove chloride, we propose to use both neutron and X-ray tomography. Indeed, these tomographic techniques have sensitivities to different elements and are thus complementary. Neutron tomography in particular is highly sensitive to the presence of chloride. This study demonstrate that this methodology allows to detect local and global changes caused by the dechlorination treatment, an useful tool to assess the effectiveness of a treatment and potentially improve it.