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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:38 |
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Conference: Bucharest University Faculty of Physics 2018 Meeting
Section: Biophysics; Medical Physics
Title:
The Use of Detector Matrices for Beam Quality Assurance in Radiotherapy
Authors:
Ionuț DUMITRU
Affiliation:
1) Faculty of Physics, University of Bucharest, Măgurele, Romania
2) Neolife
E-mail
ionut94@gmail.com
Keywords:
TRS-398, ICRU-62, External beam radiotherapy, detector matrix, PDD, flatness, symmetry
Abstract:
The use of different dosimetric equipment for radiotherapy is essential in ensuring the safety of oncologic patients all around the world. In this respect, I have reviewed different aspects pertaining to the different qualities of a photon beam used in radiotherapy using a detector matrix. It is of great importance to be able to ensure that the data you receive using such a matrix is comparable to the golden standard provided by a classical water phantom. Because a water phantom is unwieldy to use and takes a long time to prepare and set up, it is highly impractical for a daily on site emergency check, or even for a monthly monitoring of the linear accelerators used in radiotherapy. Therefore, by evaluating the results given by a detector matrix we can ensure that the beams provided by linear accelerators are up to international standards in a quick and accessible way.
References:
IAEA TRS-398 - Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry Based on Standards of Absorbed Dose to Water, International Commission on Radiation Units and Measurements (ICRU) Report 62
Acknowledgement:
I would like to thank all those who have provided me with the equipment necessary and professional support in interpreting the experimental data:
Jipa Alexandru, Cristina Petroiu, Florin Costache, Salih Gurdalli.
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