Circular Unit Cell Gratings for X-ray Dark-Field Imaging
(2017) 13th International X-ray Microscopy Conference, XRM 2016 In Journal of Physics: Conference Series 849.- Abstract
Dark-field imaging has been demonstrated to provide complementary information about the unresolved microstructure of the investigated sample. The usual implementation of a grating interferometer, which can provide access to the dark-field signal, consists of linear gratings limiting the sensitivity to only one direction (perpendicular to the grating lines). Recently, a novel grating design, composed of circular unit cells, was proposed allowing 2D-omnidirectional dark-field sensitivity in a single shot. In this work we present a further optimisation of the proposed grating by changing the arrangement of the unit cells from a Cartesian to a hexagonal grid. We experimentally compare the two designs and demonstrate that the latter has an... (More)
Dark-field imaging has been demonstrated to provide complementary information about the unresolved microstructure of the investigated sample. The usual implementation of a grating interferometer, which can provide access to the dark-field signal, consists of linear gratings limiting the sensitivity to only one direction (perpendicular to the grating lines). Recently, a novel grating design, composed of circular unit cells, was proposed allowing 2D-omnidirectional dark-field sensitivity in a single shot. In this work we present a further optimisation of the proposed grating by changing the arrangement of the unit cells from a Cartesian to a hexagonal grid. We experimentally compare the two designs and demonstrate that the latter has an improved performance.
(Less)
- author
- Kagias, Matias LU ; Pandeshwar, Amogha ; Wang, Zhentian ; Villanueva-Perez, Pablo LU ; Jefimovs, Konstantins and Stampanoni, Marco
- publishing date
- 2017-06-14
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- host publication
- Circular Unit Cell Gratings for X-ray Dark-Field Imaging
- series title
- Journal of Physics: Conference Series
- volume
- 849
- edition
- 1
- conference name
- 13th International X-ray Microscopy Conference, XRM 2016
- conference location
- Oxford, United Kingdom
- conference dates
- 2016-08-15 - 2016-08-19
- external identifiers
-
- scopus:85021877830
- ISSN
- 1742-6588
- DOI
- 10.1088/1742-6596/849/1/012053
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © Published under licence by IOP Publishing Ltd.
- id
- 3bec6639-db2f-4dde-a099-4c593f30e62e
- date added to LUP
- 2024-06-30 10:48:58
- date last changed
- 2024-07-01 14:11:25
@inproceedings{3bec6639-db2f-4dde-a099-4c593f30e62e, abstract = {{<p>Dark-field imaging has been demonstrated to provide complementary information about the unresolved microstructure of the investigated sample. The usual implementation of a grating interferometer, which can provide access to the dark-field signal, consists of linear gratings limiting the sensitivity to only one direction (perpendicular to the grating lines). Recently, a novel grating design, composed of circular unit cells, was proposed allowing 2D-omnidirectional dark-field sensitivity in a single shot. In this work we present a further optimisation of the proposed grating by changing the arrangement of the unit cells from a Cartesian to a hexagonal grid. We experimentally compare the two designs and demonstrate that the latter has an improved performance.</p>}}, author = {{Kagias, Matias and Pandeshwar, Amogha and Wang, Zhentian and Villanueva-Perez, Pablo and Jefimovs, Konstantins and Stampanoni, Marco}}, booktitle = {{Circular Unit Cell Gratings for X-ray Dark-Field Imaging}}, issn = {{1742-6588}}, language = {{eng}}, month = {{06}}, series = {{Journal of Physics: Conference Series}}, title = {{Circular Unit Cell Gratings for X-ray Dark-Field Imaging}}, url = {{http://dx.doi.org/10.1088/1742-6596/849/1/012053}}, doi = {{10.1088/1742-6596/849/1/012053}}, volume = {{849}}, year = {{2017}}, }