Skip Navigation

Radiation Protection Dosimetry 2005 114(1-3):39-44; doi:10.1093/rpd/nch507
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (3)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Illers, H.
Right arrow Articles by Hoeschen, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Illers, H.
Right arrow Articles by Hoeschen, C.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2005. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org

Measurement of the detective quantum efficiency (DQE) of digital X-ray detectors according to the novel standard IEC 62220-1

Hartmut Illers1,*, Egbert Buhr1 and Christoph Hoeschen2

1 Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
2 Department for Diagnostic Radiology, University Hospital Magdeburg, Leipziger Strasse 44, D-39120 Magdeburg, Germany

* Corresponding author: hartmut.illers{at}gst.de.

A mobile measurement facility which complies with IEC 62220-1 has been set up to determine the detective quantum efficiency (DQE) of digital X-ray detector systems. Exemplary measurements were performed for two similar CR detector systems, a CsI-based indirect detector and an Se-based direct detector. The standardised radiation quality RQA 5 was applied for measurement and for three of these systems RQA 9 was also applied. A pronounced dependence of DQE on radiation quality was observed for the direct detector, where the DQEs for RQA 5 and RQA 9 differ by a factor of ~2. The uncertainty (95% confidence interval) associated with the measured DQE values is within 0.01 and 0.04 depending on, for example, the spatial frequency. Thus, it has been demonstrated that the DQE can be measured accurately and reliably with the accuracy required by the international standard IEC 62220-1. It is now possible to objectively measure and compare DQE values of digital X-ray detector systems.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 RadiologyHome page
E. Samei, N. T. Ranger, A. MacKenzie, I. D. Honey, J. T. Dobbins III, and C. E. Ravin
Detector or System? Extending the Concept of Detective Quantum Efficiency to Characterize the Performance of Digital Radiographic Imaging Systems
Radiology, December 1, 2008; 249(3): 926 - 937.
[Abstract] [Full Text] [PDF]

Home page
 RadioGraphicsHome page
M. Korner, C. H. Weber, S. Wirth, K.-J. Pfeifer, M. F. Reiser, and M. Treitl
Advances in Digital Radiography: Physical Principles and System Overview
RadioGraphics, May 1, 2007; 27(3): 675 - 686.
[Abstract] [Full Text] [PDF]

Home page
 Radiat Prot DosimetryHome page
U. Neitzel
Status and prospects of digital detector technology for CR and DR
Radiat Prot Dosimetry, May 17, 2005; 114(1-3): 32 - 38.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.