Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories

Highlights • A CT pencil-type chamber was calibrated at eight dosimetry laboratories. • Three different calibration methods were assessed and compared. • The “ partial irradiation method ” is the preferred calibration method. • Most laboratories achieved high level of agreement (>99%) with the st...

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Bibliographic Details
Published in:Physica medica 2016-01, Vol.32 (1), p.42-51
Main Authors: Hourdakis, Costas J, Büermann, Ludwig, Ciraj-Bjelac, Olivera, Csete, Istvan, Delis, Harry, Gomola, Igor, Persson, Linda, Novak, Leos, Petkov, Ivailo, Toroi, Paula
Format: Article
Language:English
Subjects:
Air
Air kerma length product
Calibration
Comparison
CT dosimetry
CT pencil type ionization chambers
Europe
International Cooperation
Ions
Laboratories - standards
Models, Statistical
Observer Variation
Radiation Dosage
Radiology
Radiometry - methods
Reproducibility of Results
Tomography, X-Ray Computed - methods
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Summary:Highlights • A CT pencil-type chamber was calibrated at eight dosimetry laboratories. • Three different calibration methods were assessed and compared. • The “ partial irradiation method ” is the preferred calibration method. • Most laboratories achieved high level of agreement (>99%) with the standards. • Detailed analysis of the assigned uncertainties have been performed.
ISSN:1120-1797
1724-191X
DOI:10.1016/j.ejmp.2015.09.008