Dose measurements with radiophotoluminescent glass dosimeters (GD-352M and GD-302M) in therapeutic proton beams

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00588310" target="_blank" >RIV/61389005:_____/24:00588310 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.radmeas.2024.107204" target="_blank" >https://doi.org/10.1016/j.radmeas.2024.107204</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radmeas.2024.107204" target="_blank" >10.1016/j.radmeas.2024.107204</a>

Result language

angličtina

Original language name

Dose measurements with radiophotoluminescent glass dosimeters (GD-352M and GD-302M) in therapeutic proton beams

Original language description

Radiophotoluminescent glass dosimeters (RPLDs) are increasingly used, especially to measure the doses in therapeutic beams, but the reported data are mainly related to photon and electron beams, while the data for proton beams are limited and not always consistent. In this study, dose measurements were performed with two types of RPLDs: GD-352M and GD-302 M (Asahi Techno Glass Corporation). The dose dependence, long-term fading and response in different Spread out Bragg Peak (SOBP) configurations were evaluated. The dose dependence was measured in the middle of the SOBP for doses ranging from 1 Gy to 120 Gy and a linear dose response was shown for both types of RPLDs. The long-term fading of RPLDs irradiated with proton beams determined under normal ambient conditions over a period of one year is negligible. The GD-352M and GD-302M responses were evaluated in different configurations of the SOPB. The fluence-averaged (LETf) and dose-averaged (LETd) LET values at the positions of the dosimeters were calculated using the PHITS Monte Carlo code. GD-302 M results showed a small under-response compared to the doses provided by treatment planning system (TPS) (within 1.9 %). GD-352M showed an under-response compared to TPS doses for all investigated ranges and modulations with an average under-response of 20 %, indicating the need for correction factors. Both types showed a slight decrease in the response with an increase in the LET.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30224 - Radiology, nuclear medicine and medical imaging

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radiation Measurements

ISSN

1350-4487

e-ISSN

1879-0925

Volume of the periodical

176

Issue of the periodical within the volume

AUG

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

107204

UT code for WoS article

001275687000001

EID of the result in the Scopus database

2-s2.0-85196208445