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Characterization of a photon counting micro computed tomography laboratory setup

Celander, My LU ; Krüger, Robin LU orcid ; Peruzzi, Niccolò LU orcid ; Aurumskjöld, Marie Louise LU and Bech, Martin LU orcid (2026) In Radiation Protection Dosimetry 202(3-4). p.187-194
Abstract

The imaging capabilities of an in-house X-ray setup for micro computed tomography, consisting of a photon-counting detector and a liquid target source, are reported here. The effect of the finite X-ray source spot size on the image resolution is measured using the slanted edge method at different sample-to-detector distances, and the energy response of the detector is probed using clinically relevant contrast agents. The results show that the spatial resolution is limited to 12 µm at large sample magnification. The energy resolution of the detector could not be estimated based on the present experiment and data analysis. The method used to measure the spatial resolution could be useful for research groups wanting to characterize similar... (More)

The imaging capabilities of an in-house X-ray setup for micro computed tomography, consisting of a photon-counting detector and a liquid target source, are reported here. The effect of the finite X-ray source spot size on the image resolution is measured using the slanted edge method at different sample-to-detector distances, and the energy response of the detector is probed using clinically relevant contrast agents. The results show that the spatial resolution is limited to 12 µm at large sample magnification. The energy resolution of the detector could not be estimated based on the present experiment and data analysis. The method used to measure the spatial resolution could be useful for research groups wanting to characterize similar X-ray setups.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Radiation Protection Dosimetry
volume
202
issue
3-4
pages
8 pages
publisher
Oxford University Press
external identifiers
  • scopus:105032761109
  • pmid:41821460
ISSN
0144-8420
DOI
10.1093/rpd/ncaf120
language
English
LU publication?
yes
additional info
Publisher Copyright: © The Author(s) 2026. Published by Oxford University Press.
id
21c9b84c-0bba-4270-a88d-c935ede5329a
date added to LUP
2026-04-27 16:31:02
date last changed
2026-04-27 16:32:12
@article{21c9b84c-0bba-4270-a88d-c935ede5329a,
  abstract     = {{<p>The imaging capabilities of an in-house X-ray setup for micro computed tomography, consisting of a photon-counting detector and a liquid target source, are reported here. The effect of the finite X-ray source spot size on the image resolution is measured using the slanted edge method at different sample-to-detector distances, and the energy response of the detector is probed using clinically relevant contrast agents. The results show that the spatial resolution is limited to 12 µm at large sample magnification. The energy resolution of the detector could not be estimated based on the present experiment and data analysis. The method used to measure the spatial resolution could be useful for research groups wanting to characterize similar X-ray setups.</p>}},
  author       = {{Celander, My and Krüger, Robin and Peruzzi, Niccolò and Aurumskjöld, Marie Louise and Bech, Martin}},
  issn         = {{0144-8420}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3-4}},
  pages        = {{187--194}},
  publisher    = {{Oxford University Press}},
  series       = {{Radiation Protection Dosimetry}},
  title        = {{Characterization of a photon counting micro computed tomography laboratory setup}},
  url          = {{http://dx.doi.org/10.1093/rpd/ncaf120}},
  doi          = {{10.1093/rpd/ncaf120}},
  volume       = {{202}},
  year         = {{2026}},
}