EP-1308: IAEA support to national audit networks for radiotherapy dosimetry

Iżewska, J.; Azangwe, G.; Bera, P.; Grochowska, P.; Meghzifene, Ahmed

doi:10.1016/s0167-8140(15)33614-8

Cited by 2 publications

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“…However, the results are encouraging and their application in postal dosimetry services is an example where the low fading, non-hygroscopic nature and robustness is important where irradiation and postage return may take some time. In particular, where more complex dose distributions and field arrangements may be required to be measured (Izewska et al 2002, Jain et al 2013. that made this research project possible.…”

Section: Discussionmentioning

confidence: 99%

Glass beads and Ge-doped optical fibres as thermoluminescence dosimeters for small field photon dosimetry

et al. 2014

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An investigation has been made of glass beads and optical fibres as novel dosimeters for small-field photon radiation therapy dosimetry. Commercially available glass beads of largest dimension 1.5 mm and GeO2-doped SiO2 optical fibres of 5 mm length and 120 µm diameter were characterized as thermoluminescence dosimeters. Results were compared against Monte-Carlo simulations with BEAMnrc/DOSXYZnrc, EBT3 Gafchromic film, and a high-resolution 2D-array of liquid-filled ionization chambers. Measurements included relative output factors and dose profiles for square-field sizes of 1, 2, 3, 4, and 10 cm. A customized Solid-Water® phantom was employed, and the beads and fibres were placed at defined positions along the longitudinal axis to allow accurate beam profile measurement. Output factors and the beam profile parameters were compared against those calculated by BEAMnrc/DOSXYZnrc. The output factors and field width measurements were found to be in agreement with reference measurements to within better than 3.5% for all field sizes down to 2 cm2 for both dosimetric systems, with the beads showing a discrepancy of no more than 2.8% for all field sizes. The results confirm the potential of the beads and fibres as thermoluminescent dosimeters for use in small photon radiation field sizes.

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Section: Discussionmentioning

confidence: 99%

Glass beads and Ge-doped optical fibres as thermoluminescence dosimeters for small field photon dosimetry

et al. 2014

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“…The IAEA Dosimetry Laboratory has not only provided a remote dosimetry service to hospitals for the auditing of high energy photon beam reference dosimetry and supported quality improvement through comprehensive team audits in radiotherapy but has also been involved in the development of more complex dosimetry audit methodologies [4][5][6][7][8]. An IAEA Dosimetry Audit Network Database has been created to maintain a register of national and international dosimetry audit programs for radiotherapy.…”

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confidence: 99%

IAEA support to radiotherapy dosimetry

Merwe

Christaki

2020

Acta Oncologica

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EP-1308: IAEA support to national audit networks for radiotherapy dosimetry

Cited by 2 publications

References 0 publications

Glass beads and Ge-doped optical fibres as thermoluminescence dosimeters for small field photon dosimetry

Glass beads and Ge-doped optical fibres as thermoluminescence dosimeters for small field photon dosimetry

IAEA support to radiotherapy dosimetry

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