| Zugriffsnummer | 35546 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories |
| Autor(in); Institution |
Hourdakis, Costas J.; Greek Atomic Energy Commission (IRCL/GAEC-EIM), Attiki, GREECE
Büermann, Ludwig; 6.2, Dosimetrie für Strahlentherapie und Röntgendiagnostik, PTB-Braunschweig
Ciraj-Bjelac, Olivera; Vinca Institute of Nuclear Science, Radiation and Environmental Protection Laboratory (VINCA), University of Belgrade, Belgrade, SERBIA
Csete, Istvan; International Atomic Energy Agency, (IAEA) Vienna, AUSTRIA
Delis, Harry; International Atomic Energy Agency, (IAEA) Vienna, AUSTRIA
Gomola, Igor; International Atomic Energy Agency, (IAEA) Vienna, AUSTRIA
Persson, Linda; Swedish Radiation Safety Authority (SSM), Stockholm, SWEDEN
Novak, Leos; National Radiation Protection Institute (SURO), Prague, CZECH REPUBLIC
Petkov, Ivailo; Metrology of Ionizing Radiation, National Center of Radiobiology and Radiation Protection (NCRRP), Sofia, BULGARIA
Toroi, Paula; Radiation and Nuclear Safety Authority (STUK), Helsinki, FINLAND
|
| Quelle/Jahr | Physica Medica: 32 (2016), 1, 42 - 51 |
| ISSN | 1120-1797 (PRINT) ; 1724-191X (ONLINE) |
| DOI | |
| Verlag | Amsterdam: Elsevier |
| Freie Schlagworte | Air kerma length product ; CT dosimetry ; CT pencil type ionization chamber ; calibration ; comparison |
| Zusammenfassung | A comparison of calibration results and procedures in terms of air kerma length product, PKL, and air kerma, K, was conducted between eight dosimetry laboratories. A pencil-type ionization chamber (IC), generally used for computed tomography dose measurements, was calibrated according to three calibration methods, while its residual signal and other characteristics (sensitivity profile, active length) were assessed. The results showed that the “partial irradiation method” is the preferred method for the penciltype IC calibration in terms of PKL and it could be applied by the calibration laboratories successfully. Most of the participating laboratories achieved high level of agreement ()99%) for both dosimetry quantities (PKL and K). Estimated relative standard uncertainties of comparison results vary among laboratories from 0.34% to 2.32% depending on the quantity, beam quality and calibration method applied. Detailed analysis of the assigned uncertainties have been presented and discussed. |
Zitierung
Hourdakis, C. J., Büermann, L., Ciraj-Bjelac, O., Csete, I., Delis, H., Gomola, I., Persson, L., Novak, L., Petkov, I., & Toroi, P. (2016). Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories. Physica Medica, 32(1), 42–51. http://doi.org/10.1016/j.ejmp.2015.09.008