Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories
Само за регистроване кориснике
2016
Аутори
Hourdakis, Constantine J.Bueermann, Ludwig
Ciraj-Bjelac, Olivera
Csete, Istvan
Delis, Harry
Gomola, Igor
Persson, Linda
Novak, Leos
Petkov, Ivailo
Toroi, Paula
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A comparison of calibration results and procedures in terms of air kerma length product, P-KL, 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 pencil-type IC calibration in terms of P-KL and it could be applied by the calibration laboratories successfully. Most of the participating laboratories achieved high level of agreement ( GT 99%) for both dosimetry quantities (P-KL 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. (C) 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.
Кључне речи:
Air kerma length product / CT dosimetry / CT pencil type ionization chambers / Calibration / ComparisonИзвор:
Physica Medica, 2016, 32, 1, 42-51Финансирање / пројекти:
- IAEA [E2.10.08]
DOI: 10.1016/j.ejmp.2015.09.008
ISSN: 1120-1797; 1724-191X
PubMed: 26508013
WoS: 000369647300006
Scopus: 2-s2.0-84951104496
Колекције
Институција/група
VinčaTY - JOUR AU - Hourdakis, Constantine J. AU - Bueermann, Ludwig AU - Ciraj-Bjelac, Olivera AU - Csete, Istvan AU - Delis, Harry AU - Gomola, Igor AU - Persson, Linda AU - Novak, Leos AU - Petkov, Ivailo AU - Toroi, Paula PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/271 AB - A comparison of calibration results and procedures in terms of air kerma length product, P-KL, 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 pencil-type IC calibration in terms of P-KL and it could be applied by the calibration laboratories successfully. Most of the participating laboratories achieved high level of agreement ( GT 99%) for both dosimetry quantities (P-KL 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. (C) 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved. T2 - Physica Medica T1 - Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories VL - 32 IS - 1 SP - 42 EP - 51 DO - 10.1016/j.ejmp.2015.09.008 ER -
@article{ author = "Hourdakis, Constantine J. and Bueermann, Ludwig and Ciraj-Bjelac, Olivera and Csete, Istvan and Delis, Harry and Gomola, Igor and Persson, Linda and Novak, Leos and Petkov, Ivailo and Toroi, Paula", year = "2016", abstract = "A comparison of calibration results and procedures in terms of air kerma length product, P-KL, 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 pencil-type IC calibration in terms of P-KL and it could be applied by the calibration laboratories successfully. Most of the participating laboratories achieved high level of agreement ( GT 99%) for both dosimetry quantities (P-KL 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. (C) 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.", journal = "Physica Medica", title = "Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories", volume = "32", number = "1", pages = "42-51", doi = "10.1016/j.ejmp.2015.09.008" }
Hourdakis, C. J., Bueermann, 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. in Physica Medica, 32(1), 42-51. https://doi.org/10.1016/j.ejmp.2015.09.008
Hourdakis CJ, Bueermann L, Ciraj-Bjelac O, Csete I, Delis H, Gomola I, Persson L, Novak L, Petkov I, Toroi P. Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories. in Physica Medica. 2016;32(1):42-51. doi:10.1016/j.ejmp.2015.09.008 .
Hourdakis, Constantine J., Bueermann, Ludwig, Ciraj-Bjelac, Olivera, Csete, Istvan, Delis, Harry, Gomola, Igor, Persson, Linda, Novak, Leos, Petkov, Ivailo, Toroi, Paula, "Comparison of pencil-type ionization chamber calibration results and methods between dosimetry laboratories" in Physica Medica, 32, no. 1 (2016):42-51, https://doi.org/10.1016/j.ejmp.2015.09.008 . .