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Publikācija: Modeling of the Response of Ionization Chambers in Radiotherapy Fields with Dynamic Intensity Modulation

Publication Type Full-text conference paper published in other conference proceedings
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Modeling of the Response of Ionization Chambers in Radiotherapy Fields with Dynamic Intensity Modulation
Field of research 1. Natural sciences
Sub-field of research 1.3 Physical sciences
Authors Sandija Plaude
Sergejs Popovs
Artūrs Meijers
A. Millers
Jurijs Dehtjars
Keywords Point dose measurements, ionization chamber, IMRT
Abstract Ionization chamber (IC) is the most common and trusted radiation detector in Radiotherapy (RT) dosimetry. However, due to its finite size detector volume have an impact on point dose easurements especially in a penumbra and regions of high dose gradients inside Intensity odulated Radiotherapy (IMRT) fields. The aim of this work is to make a comparison of measured and modeled point doses in the case of dynamic radiotherapy using IC`s of different active volumes, to evaluate magnitude of the chamber volume effect on the discrepancy between the calculated and the measured dose.
Hyperlink: http://alephfiles.rtu.lv/TUA01/000030515_e.pdf 
Reference Plaude, S., Popovs, S., Meijers, A., Millers, A., Dehtjars, J. Modeling of the Response of Ionization Chambers in Radiotherapy Fields with Dynamic Intensity Modulation. In: Medical Physics in the Baltic States 2009: Proceedings of the 7th International Conference on Medical Physics, Lithuania, Kaunas, 8-10 October, 2009. Kaunas: Kaunas University of Technology, 2009, pp.52-55. ISSN 1822-5721.
ID 6958