Naslov
Comparison of secondary radiation doses in scanning proton radiotherapy using different passive dosimetry systems: Activity within EURADOS WG9 (SG2)

Autori
Knežević, Željka ; on behalf of Eurados WG9

Kolaboracija
EURADOS Working Group

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Izvornik
Proceedings of the 13th International Workshop on Ionizing Radiation Monitoring / Yamamoto, Takayoshi - Ōarai : Chiyoda Technol Corporation (CTC), 2018, 89-95

Skup
13th International Workshop on Ionizing Radiation Monitoring

Mjesto i datum
Ōarai, Japan, 02.12.2017. - 03.12.2017

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
Proton radiotherapy ; secondary radiation doses ; passive dosimetry systems

Sažetak
The hadron therapy sub-group of EURADOS Working Group 9 (Radiation Dosimetry in Radiotherapy) is engaged in a measurement campaign designed to investigate the secondary radiation generated by a scanning proton beam. One of the goals of SG2 is to assess non-target patient doses and the related risks of secondary malignancy, and also to study and compare different dosimetry methods for measurements proton and neutron doses in different phantom experiments. Two large experimental campaigns were carried out in the IBA (230 MeV) active-scanning proton beam therapy facility in Trento (in the Trento Centro di Protonterapia, Italy) by using simple water tank phantom and in Krakow (in the Bronowice Cyclotron Center, Poland) by using different child antropomorphic phantoms. Within these campaigns doses were measured by means of different passive and also active dosimetry methods Doses were measured with different thermoluminescent (MTS-7, MTS-6 and MCP-n, TLD-700), radiophotoluminescent (GD-352M and GD302-M), optically stimulated (OSL) bubble and polyallyldiglycol carbonate (PADC) -based (C12H18O7) track-etched detectors. In the presentation some of the results on comparison of neutron and gamma radiation field inside water tank and anthropomorphic phantoms using different passive dosimetry systems will be shown. Special emphasis will be given on the comparison of response of different TL dosimeters and RPL dosimeters. The detailed analysis of different dosimetry systems will be completed incorporating future Monte Carlo simulations of the interaction processes. This is expected to provide valuable information about out-of-field doses and dose contributions in proton spot scanning techniques and also a better assessment of measurement accuracy and the response of different passive dosimetry systems.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Interdisciplinarne prirodne znanosti

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