Detection of sub-pixel fractures in X-ray dark-field tomography
(2015) In Applied Physics A: Materials Science & Processing 121(3). p.1243-1250- Abstract
- We present a new method for detecting fractures in solid materials below the resolution given by the detector pixel size by using grating-based X-ray interferometry. The technique is particularly useful for detecting sub-pixel cracks in large samples where the size of the sample is preventing high-resolution mu CT studies of the entire sample. The X-ray grating interferometer produces three distinct modality signals: absorption, phase and dark field. The method utilizes the unique scattering features of the dark-field signal. We have used tomograms reconstructed from each of the three signals to detect cracks in a model sample consisting of stearin.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8539579
- author
- Lauridsen, Torsten ; Willner, Marian ; Bech, Martin LU ; Pfeiffer, Franz and Feidenhans'l, Robert
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics A: Materials Science & Processing
- volume
- 121
- issue
- 3
- pages
- 1243 - 1250
- publisher
- Springer
- external identifiers
-
- wos:000364914100049
- scopus:84947039559
- ISSN
- 1432-0630
- DOI
- 10.1007/s00339-015-9496-2
- language
- English
- LU publication?
- yes
- id
- a65cdd64-b1d6-48f3-982a-dcb9e9c0a7b4 (old id 8539579)
- date added to LUP
- 2016-04-01 10:48:13
- date last changed
- 2022-04-12 17:50:48
@article{a65cdd64-b1d6-48f3-982a-dcb9e9c0a7b4, abstract = {{We present a new method for detecting fractures in solid materials below the resolution given by the detector pixel size by using grating-based X-ray interferometry. The technique is particularly useful for detecting sub-pixel cracks in large samples where the size of the sample is preventing high-resolution mu CT studies of the entire sample. The X-ray grating interferometer produces three distinct modality signals: absorption, phase and dark field. The method utilizes the unique scattering features of the dark-field signal. We have used tomograms reconstructed from each of the three signals to detect cracks in a model sample consisting of stearin.}}, author = {{Lauridsen, Torsten and Willner, Marian and Bech, Martin and Pfeiffer, Franz and Feidenhans'l, Robert}}, issn = {{1432-0630}}, language = {{eng}}, number = {{3}}, pages = {{1243--1250}}, publisher = {{Springer}}, series = {{Applied Physics A: Materials Science & Processing}}, title = {{Detection of sub-pixel fractures in X-ray dark-field tomography}}, url = {{http://dx.doi.org/10.1007/s00339-015-9496-2}}, doi = {{10.1007/s00339-015-9496-2}}, volume = {{121}}, year = {{2015}}, }