التفاصيل البيبلوغرافية
| العنوان: |
Assessing conservation agents in archaeological wood by neutron imaging |
| المؤلفون: |
Martinez-Garcia, Jorge, Stelzner, Ingrid, Stelzner, Jörg, Gwerder, Damian, Trtik, Pavel, Mannes, David, Schuetz, Philipp |
| المصدر: |
ICOM-CC WOAM 2023, Wet Organic Archaeological Materials 2023, Mainz, Germany, 30th January - 03.February 2023 |
| بيانات النشر: |
ICOM-CC WOAM |
| سنة النشر: |
2023 |
| المجموعة: |
Zenodo |
| مصطلحات موضوعية: |
Neutron computed tomography, X-ray computed tomography, archaeological wood, conservation |
| الوصف: |
Archaeological wooden artefacts are commonly found inwaterlogged conditions exhibiting a degraded and fragile wood structure. Depending on the degree of degradation,they might collapse and/or shrink during drying processes after excavation, leading to a total loss of the cultural heritageinformation encoded in the wood structure. Conservation treatments are thus required to prevent damage and to bringthe samples into a chemically and physically stable condition. However, the distribution of conservation agents mightimpact the conservation quality, impairing the analysis of the sample. Relevant information of the internal anatomicalwood structure and its interaction with impregnated conservation agents can be obtained in a non-destructivemanner using imaging-based techniques, such as X-ray and Neutron computed tomography. In this work, neutroncomputed tomography (N-CT) has been used to study the penetration behaviour of different conservation agents usingalcohol-ether resin (AlEt), saccharose (Sac), silicone oil (Sil) and polyethylene glycol with different treatments, PEG(1), PEG(2) and PEG(3), in archaeological wood samples exhibiting different anatomical structures. Fifty-one samplesfrom a reference collection established between 2008 and 2011 covering a wide variety of methods and wood generawere measured with thermal neutrons. Thirteen of them were fully investigated to assess the penetration depth anddistribution of the conservation agents inside the samples. The results show that neutrons feature high contrast for Sil,PEG and Sac conservation agents, which display different penetration paths depending on the anatomical woodstructure. The AlEt treatment, on the other hand, is barely detected from the measured imaging data. ; This work was supported by the Swiss National Science Foundation (Grant 200021E 183684) and the German Research Foundation (DFG – 416877131). |
| نوع الوثيقة: |
conference object |
| اللغة: |
English |
| Relation: |
https://zenodo.org/communities/leiza_bibliothek; https://zenodo.org/communities/cutaway; https://doi.org/10.5281/zenodo.7957007; https://doi.org/10.5281/zenodo.7957008; oai:zenodo.org:7957008 |
| DOI: |
10.5281/zenodo.7957008 |
| الاتاحة: |
https://doi.org/10.5281/zenodo.7957008 |
| Rights: |
info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/legalcode |
| رقم الانضمام: |
edsbas.C9F050A8 |
| قاعدة البيانات: |
BASE |