Absorbed dose uncertainty estimation for proton therapy

Successful radiotherapy treatment depends on the absorbed dose evaluation and the possibility to define metrological characteristics of the therapy beam. Radiotherapy requires tumor dose delivery with expanded uncertainty less than ±5 %. It is particularly important to reduce uncertainty during t...

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Main Authors: Spasić-Jokić Vesna, Dobrosavljević Aleksandar, Beličev Petar
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2012-01-01
Series:Nuclear Technology and Radiation Protection
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-3994/2012/1451-39941203297S.pdf
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author Spasić-Jokić Vesna
Dobrosavljević Aleksandar
Beličev Petar
author_facet Spasić-Jokić Vesna
Dobrosavljević Aleksandar
Beličev Petar
author_sort Spasić-Jokić Vesna
collection DOAJ
description Successful radiotherapy treatment depends on the absorbed dose evaluation and the possibility to define metrological characteristics of the therapy beam. Radiotherapy requires tumor dose delivery with expanded uncertainty less than ±5 %. It is particularly important to reduce uncertainty during therapy beam calibration as well as to apply all necessary ionization chamber correction factors. Absorbed dose to water was determined using ionometric method. Calibration was performed in reference cobalt beam. Combined standard uncertainty of the calculated absorbed dose to water in 65 MeV proton beam was ±1.97% while the obtained expanded uncertainty of absorbed dose for the same beam quality was ±5.02%. The uncertainty estimation method has been developed within the project TESLA.
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spelling doaj.art-eb6c2c756baf4f8da217903439d292f02022-12-22T02:33:30ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942012-01-0127329730410.2298/NTRP1203297SAbsorbed dose uncertainty estimation for proton therapySpasić-Jokić VesnaDobrosavljević AleksandarBeličev PetarSuccessful radiotherapy treatment depends on the absorbed dose evaluation and the possibility to define metrological characteristics of the therapy beam. Radiotherapy requires tumor dose delivery with expanded uncertainty less than ±5 %. It is particularly important to reduce uncertainty during therapy beam calibration as well as to apply all necessary ionization chamber correction factors. Absorbed dose to water was determined using ionometric method. Calibration was performed in reference cobalt beam. Combined standard uncertainty of the calculated absorbed dose to water in 65 MeV proton beam was ±1.97% while the obtained expanded uncertainty of absorbed dose for the same beam quality was ±5.02%. The uncertainty estimation method has been developed within the project TESLA.http://www.doiserbia.nb.rs/img/doi/1451-3994/2012/1451-39941203297S.pdfprotonsabsorbed dosetherapyuncertainty
spellingShingle Spasić-Jokić Vesna
Dobrosavljević Aleksandar
Beličev Petar
Absorbed dose uncertainty estimation for proton therapy
Nuclear Technology and Radiation Protection
protons
absorbed dose
therapy
uncertainty
title Absorbed dose uncertainty estimation for proton therapy
title_full Absorbed dose uncertainty estimation for proton therapy
title_fullStr Absorbed dose uncertainty estimation for proton therapy
title_full_unstemmed Absorbed dose uncertainty estimation for proton therapy
title_short Absorbed dose uncertainty estimation for proton therapy
title_sort absorbed dose uncertainty estimation for proton therapy
topic protons
absorbed dose
therapy
uncertainty
url http://www.doiserbia.nb.rs/img/doi/1451-3994/2012/1451-39941203297S.pdf
work_keys_str_mv AT spasicjokicvesna absorbeddoseuncertaintyestimationforprotontherapy
AT dobrosavljevicaleksandar absorbeddoseuncertaintyestimationforprotontherapy
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