Dendrochronology with a medical X-ray photon counting computed tomography scanner
(2024) In Dendrochronologia 86.- Abstract
Dendrochronology traditionally involves invasive techniques that might harm cultural heritage artifacts. Non-invasive approaches using X-ray technology and computed tomography (CT) have emerged, but dedicated CT systems are limited in availability. This study explored the viability of using a recently developed photon counting medical CT scanner for growth ring analysis. Six wood samples from pine, oak and beech with varying growth rates were studied. Comparisons were made between traditional methods and CT scanning with measurements performed on the untreated surface, a prepared surface and on CT images. For samples with annual rings wider than 0.3–0.4 mm, CT scanning performed well, while samples with thinner rings or indistinct ring... (More)
Dendrochronology traditionally involves invasive techniques that might harm cultural heritage artifacts. Non-invasive approaches using X-ray technology and computed tomography (CT) have emerged, but dedicated CT systems are limited in availability. This study explored the viability of using a recently developed photon counting medical CT scanner for growth ring analysis. Six wood samples from pine, oak and beech with varying growth rates were studied. Comparisons were made between traditional methods and CT scanning with measurements performed on the untreated surface, a prepared surface and on CT images. For samples with annual rings wider than 0.3–0.4 mm, CT scanning performed well, while samples with thinner rings or indistinct ring boundaries presented challenges. The combination of traditional tree-ring measurements and analyses of CT scanned images might be a superior study approach generating extra data and information.
(Less)
- author
- Geijer, Håkan ; Ndongozi, Fleury and Edvardsson, Johannes LU
- organization
- publishing date
- 2024-08
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Beech, Computed tomography, Oak, Pine, Tree rings, X-ray
- in
- Dendrochronologia
- volume
- 86
- article number
- 126233
- publisher
- Elsevier
- external identifiers
-
- scopus:85197070589
- ISSN
- 1125-7865
- DOI
- 10.1016/j.dendro.2024.126233
- language
- English
- LU publication?
- yes
- id
- 53ed9842-3040-424c-b74b-59beb43477be
- date added to LUP
- 2024-09-13 14:43:06
- date last changed
- 2024-09-13 14:43:34
@article{53ed9842-3040-424c-b74b-59beb43477be,
abstract = {{<p>Dendrochronology traditionally involves invasive techniques that might harm cultural heritage artifacts. Non-invasive approaches using X-ray technology and computed tomography (CT) have emerged, but dedicated CT systems are limited in availability. This study explored the viability of using a recently developed photon counting medical CT scanner for growth ring analysis. Six wood samples from pine, oak and beech with varying growth rates were studied. Comparisons were made between traditional methods and CT scanning with measurements performed on the untreated surface, a prepared surface and on CT images. For samples with annual rings wider than 0.3–0.4 mm, CT scanning performed well, while samples with thinner rings or indistinct ring boundaries presented challenges. The combination of traditional tree-ring measurements and analyses of CT scanned images might be a superior study approach generating extra data and information.</p>}},
author = {{Geijer, Håkan and Ndongozi, Fleury and Edvardsson, Johannes}},
issn = {{1125-7865}},
keywords = {{Beech; Computed tomography; Oak; Pine; Tree rings; X-ray}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Dendrochronologia}},
title = {{Dendrochronology with a medical X-ray photon counting computed tomography scanner}},
url = {{http://dx.doi.org/10.1016/j.dendro.2024.126233}},
doi = {{10.1016/j.dendro.2024.126233}},
volume = {{86}},
year = {{2024}},
}