Characterization of scintillating materials in use for brachytherapy fiber based dosimeters

S. Cometti; Agnieszka Gierej; A Giaz; S. Lomazzi; Tigran Baghdasaryan; Jürgen Van Erps; Francis Berghmans; R. Santoro; M. Caccia; S. O'keeffe

doi:10.1016/j.nima.2022.167083

Characterization of scintillating materials in use for brachytherapy fiber based dosimeters

S. Cometti, Agnieszka Gierej, A Giaz, S. Lomazzi, Tigran Baghdasaryan, Jürgen Van Erps, Francis Berghmans, R. Santoro, M. Caccia, S. O'keeffe

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Abstract

This paper reports the characterization of two scintillating materials in powder form, Gadox and YVO embedded in a light-activated resin, used in a probe developed for oncological brachytherapy in-vivo dosimetry. The materials were characterized in terms of internal absorption, scintillation decay time, and light yield. The measurement of the optical characteristics highlighted a significant internal absorption at the scintillation light wavelength, with values of 6.5 dB/mm for Gadox and 14.1 dB/mm for YVO. Measurements of the characteristics scintillation time and of the light yield were performed with a novel method based on single photon counting, profiting from the long decay time of the materials under study. Measurements have been complemented by a two-step simulation with Geant4 to study the energy deposition followed by a ZEMAX OpticStudio (R) ray tracing to estimate the light collection effi-ciency. The decay time for scintillating materials were measured to be r?????????????????????????????? = (458 & PLUSMN; 3 & PLUSMN; 3) mu s and rYVO = (451 & PLUSMN; 8 & PLUSMN; 3) irs and the estimated values of the light yield are (7.1 & PLUSMN; 0.5) x 104 photon/MeV for Gadox and (4.8 & PLUSMN; 0.5) x 104 photon/MeV for YVO.

Original language	English
Article number	167083
Pages (from-to)	1-7
Number of pages <span style="color:red"p> <font size="1.5"> ✽ </span> </font>	7
Journal	Nuclear Instruments and Methods in Physics Research Section A
Volume	1042
DOIs	https://doi.org/10.1016/j.nima.2022.167083
Publication status	Published - 1 Nov 2022

Bibliographical note

Funding Information:
The ORIGIN project is an initiative of the Photonics Public Private Partnership (www.photonics21.org), and has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324.

Funding Information:
The ORIGIN project is an initiative of the Photonics Public Private Partnership ( www.photonics21.org ), and has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324 .

Publisher Copyright:
© 2022 The Authors

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

Keywords

00-01 99-00 Brachytherapy Inorganic scintillators Single photoelectron SiPM Light yield

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10.1016/j.nima.2022.167083Licence: CC BY-NC-ND

2022 - S. Cometti - Characterization of scintillating materials in use for brachytherapy fiber based dosimetersFinal published version, 1.51 MBLicence: CC BY-NC-ND

Cite this

@article{a9cc48523c5f4766a014fb28423e6cf3,

title = "Characterization of scintillating materials in use for brachytherapy fiber based dosimeters",

abstract = "This paper reports the characterization of two scintillating materials in powder form, Gadox and YVO embedded in a light-activated resin, used in a probe developed for oncological brachytherapy in-vivo dosimetry. The materials were characterized in terms of internal absorption, scintillation decay time, and light yield. The measurement of the optical characteristics highlighted a significant internal absorption at the scintillation light wavelength, with values of 6.5 dB/mm for Gadox and 14.1 dB/mm for YVO. Measurements of the characteristics scintillation time and of the light yield were performed with a novel method based on single photon counting, profiting from the long decay time of the materials under study. Measurements have been complemented by a two-step simulation with Geant4 to study the energy deposition followed by a ZEMAX OpticStudio (R) ray tracing to estimate the light collection effi-ciency. The decay time for scintillating materials were measured to be r?????????????????????????????? = (458 & PLUSMN; 3 & PLUSMN; 3) mu s and rYVO = (451 & PLUSMN; 8 & PLUSMN; 3) irs and the estimated values of the light yield are (7.1 & PLUSMN; 0.5) x 104 photon/MeV for Gadox and (4.8 & PLUSMN; 0.5) x 104 photon/MeV for YVO.",

keywords = "00-01 99-00 Brachytherapy Inorganic scintillators Single photoelectron SiPM Light yield",

author = "S. Cometti and Agnieszka Gierej and A Giaz and S. Lomazzi and Tigran Baghdasaryan and {Van Erps}, J{\"u}rgen and Francis Berghmans and R. Santoro and M. Caccia and S. O'keeffe",

note = "Funding Information: The ORIGIN project is an initiative of the Photonics Public Private Partnership (www.photonics21.org), and has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324. Funding Information: The ORIGIN project is an initiative of the Photonics Public Private Partnership ( www.photonics21.org ), and has received funding from the European Union{\textquoteright}s Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324 . Publisher Copyright: {\textcopyright} 2022 The Authors Copyright: Copyright 2022 Elsevier B.V., All rights reserved.",

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Characterization of scintillating materials in use for brachytherapy fiber based dosimeters. / Cometti, S.; Gierej, Agnieszka; Giaz, A; Lomazzi, S.; Baghdasaryan, Tigran ; Van Erps, Jürgen ; Berghmans, Francis; Santoro, R.; Caccia, M.; O'keeffe, S.

In: Nuclear Instruments and Methods in Physics Research Section A, Vol. 1042, 167083, 01.11.2022, p. 1-7.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Characterization of scintillating materials in use for brachytherapy fiber based dosimeters

AU - Cometti, S.

AU - Gierej, Agnieszka

AU - Giaz, A

AU - Lomazzi, S.

AU - Baghdasaryan, Tigran

AU - Van Erps, Jürgen

AU - Berghmans, Francis

AU - Santoro, R.

AU - Caccia, M.

AU - O'keeffe, S.

N1 - Funding Information: The ORIGIN project is an initiative of the Photonics Public Private Partnership (www.photonics21.org), and has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324. Funding Information: The ORIGIN project is an initiative of the Photonics Public Private Partnership ( www.photonics21.org ), and has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement n° 871324 . Publisher Copyright: © 2022 The Authors Copyright: Copyright 2022 Elsevier B.V., All rights reserved.

PY - 2022/11/1

Y1 - 2022/11/1

N2 - This paper reports the characterization of two scintillating materials in powder form, Gadox and YVO embedded in a light-activated resin, used in a probe developed for oncological brachytherapy in-vivo dosimetry. The materials were characterized in terms of internal absorption, scintillation decay time, and light yield. The measurement of the optical characteristics highlighted a significant internal absorption at the scintillation light wavelength, with values of 6.5 dB/mm for Gadox and 14.1 dB/mm for YVO. Measurements of the characteristics scintillation time and of the light yield were performed with a novel method based on single photon counting, profiting from the long decay time of the materials under study. Measurements have been complemented by a two-step simulation with Geant4 to study the energy deposition followed by a ZEMAX OpticStudio (R) ray tracing to estimate the light collection effi-ciency. The decay time for scintillating materials were measured to be r?????????????????????????????? = (458 & PLUSMN; 3 & PLUSMN; 3) mu s and rYVO = (451 & PLUSMN; 8 & PLUSMN; 3) irs and the estimated values of the light yield are (7.1 & PLUSMN; 0.5) x 104 photon/MeV for Gadox and (4.8 & PLUSMN; 0.5) x 104 photon/MeV for YVO.

AB - This paper reports the characterization of two scintillating materials in powder form, Gadox and YVO embedded in a light-activated resin, used in a probe developed for oncological brachytherapy in-vivo dosimetry. The materials were characterized in terms of internal absorption, scintillation decay time, and light yield. The measurement of the optical characteristics highlighted a significant internal absorption at the scintillation light wavelength, with values of 6.5 dB/mm for Gadox and 14.1 dB/mm for YVO. Measurements of the characteristics scintillation time and of the light yield were performed with a novel method based on single photon counting, profiting from the long decay time of the materials under study. Measurements have been complemented by a two-step simulation with Geant4 to study the energy deposition followed by a ZEMAX OpticStudio (R) ray tracing to estimate the light collection effi-ciency. The decay time for scintillating materials were measured to be r?????????????????????????????? = (458 & PLUSMN; 3 & PLUSMN; 3) mu s and rYVO = (451 & PLUSMN; 8 & PLUSMN; 3) irs and the estimated values of the light yield are (7.1 & PLUSMN; 0.5) x 104 photon/MeV for Gadox and (4.8 & PLUSMN; 0.5) x 104 photon/MeV for YVO.

KW - 00-01 99-00 Brachytherapy Inorganic scintillators Single photoelectron SiPM Light yield

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DO - 10.1016/j.nima.2022.167083

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EP - 7

JO - Nuclear Instruments and Methods in Physics Research Section A

JF - Nuclear Instruments and Methods in Physics Research Section A

SN - 0168-9002

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Characterization of scintillating materials in use for brachytherapy fiber based dosimeters

Abstract

Bibliographical note

Keywords

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The dataset for publication "Characterization of scintillating materials in use for brachytherapy fiber based dosimeters" by S. Commeti, et al., Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2022

Cite this

Characterization of scintillating materials in use for brachytherapy fiber based dosimeters

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Datasets

The dataset for publication "Characterization of scintillating materials in use for brachytherapy fiber based dosimeters" by S. Commeti, et al., Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2022

Cite this