Luminescence efficiency of Al2O3:C,Mg radiophotoluminescence in charged particle beams

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Luminescence efficiency of Al2O3:C,Mg radiophotoluminescence in charged particle beams. / De Saint-Hubert, Marijke; Freire De Souza, Luiza; Kodaira, Satoshi; Swakoń, Jan; De Freitas Nascimento, Luana.

In: Radiation Measurements, Vol. 123, 28.12.2018, p. 4.

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@article{b4d93223d85843a7af270af878f9aace,
title = "Luminescence efficiency of Al2O3:C,Mg radiophotoluminescence in charged particle beams",
abstract = "In hadron therapy, it is important to evaluate how sensitive a detector is upon radiation with varying ionization densities, i.e. linear energy transfer (LET), as the LET changes when penetrating through material. For solid-state detectors, it is therefore essential to characterize the luminescence efficiency (ηHT,γ) of the detector as a function of LET. In this work, we investigate the radiophotuminescence (RPL) response from Al2O3:C,Mg 2D films and crystals exposed to various high LET beams (1H, 4He, 12C, 28Si and 56Fe). The measured ηHT,γ curve from RPL films and crystals as function of the particle LET is compared with the ηHT,γ curve from Al2O3:C OSL samples. Furthermore, a 2D RPL image, from Al2O3:C,Mg films irradiated with a 61.3 MeV 40mm diameter broad proton beam, depicts a 2D depth dose distribution of the Bragg peak and demonstrates similar LET dependence as from the luminescence efficiency curve. The ηHT,γ curves are consistent with Birks’ law, where we observe expected quenching for increasing LET",
keywords = "Radiophotoluminescence, 2D dosimetry QA, Radiotherapy, RPL film",
author = "{De Saint-Hubert}, Marijke and {Freire De Souza}, Luiza and Satoshi Kodaira and Jan Swakoń and {De Freitas Nascimento}, Luana",
note = "Score=10",
year = "2018",
month = "12",
day = "28",
doi = "10.1016/j.radmeas.2018.12.015",
language = "English",
volume = "123",
pages = "4",
journal = "Radiation Measurements",
issn = "1350-4487",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Luminescence efficiency of Al2O3:C,Mg radiophotoluminescence in charged particle beams

AU - De Saint-Hubert, Marijke

AU - Freire De Souza, Luiza

AU - Kodaira, Satoshi

AU - Swakoń, Jan

AU - De Freitas Nascimento, Luana

N1 - Score=10

PY - 2018/12/28

Y1 - 2018/12/28

N2 - In hadron therapy, it is important to evaluate how sensitive a detector is upon radiation with varying ionization densities, i.e. linear energy transfer (LET), as the LET changes when penetrating through material. For solid-state detectors, it is therefore essential to characterize the luminescence efficiency (ηHT,γ) of the detector as a function of LET. In this work, we investigate the radiophotuminescence (RPL) response from Al2O3:C,Mg 2D films and crystals exposed to various high LET beams (1H, 4He, 12C, 28Si and 56Fe). The measured ηHT,γ curve from RPL films and crystals as function of the particle LET is compared with the ηHT,γ curve from Al2O3:C OSL samples. Furthermore, a 2D RPL image, from Al2O3:C,Mg films irradiated with a 61.3 MeV 40mm diameter broad proton beam, depicts a 2D depth dose distribution of the Bragg peak and demonstrates similar LET dependence as from the luminescence efficiency curve. The ηHT,γ curves are consistent with Birks’ law, where we observe expected quenching for increasing LET

AB - In hadron therapy, it is important to evaluate how sensitive a detector is upon radiation with varying ionization densities, i.e. linear energy transfer (LET), as the LET changes when penetrating through material. For solid-state detectors, it is therefore essential to characterize the luminescence efficiency (ηHT,γ) of the detector as a function of LET. In this work, we investigate the radiophotuminescence (RPL) response from Al2O3:C,Mg 2D films and crystals exposed to various high LET beams (1H, 4He, 12C, 28Si and 56Fe). The measured ηHT,γ curve from RPL films and crystals as function of the particle LET is compared with the ηHT,γ curve from Al2O3:C OSL samples. Furthermore, a 2D RPL image, from Al2O3:C,Mg films irradiated with a 61.3 MeV 40mm diameter broad proton beam, depicts a 2D depth dose distribution of the Bragg peak and demonstrates similar LET dependence as from the luminescence efficiency curve. The ηHT,γ curves are consistent with Birks’ law, where we observe expected quenching for increasing LET

KW - Radiophotoluminescence

KW - 2D dosimetry QA

KW - Radiotherapy

KW - RPL film

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/33740523

U2 - 10.1016/j.radmeas.2018.12.015

DO - 10.1016/j.radmeas.2018.12.015

M3 - Article

VL - 123

SP - 4

JO - Radiation Measurements

JF - Radiation Measurements

SN - 1350-4487

ER -

ID: 5102087