Optical fiber dosimeter for real-time in-vivo dose monitoring during LDR brachytherapy

P. WOULFE; F. J. SULLIVAN; W. KAM; S. O'KEEFFE

doi:10.1364/BOE.385610

Optical fiber dosimeter for real-time in-vivo dose monitoring during LDR brachytherapy

P. WOULFE, F. J. SULLIVAN, W. KAM, S. O'KEEFFE

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

Abstract

An optical fiber sensor for monitoring low dose radiation is presented. The sensor, based on radiation sensitive scintillation material, terbium doped gadolinium oxysulphide (Gd2O2S:Tb), is embedded in a cavity of 700μm diameter within a 1mm plastic optical fiber. The sensor is compared with the treatment planning system for repeatability, angular dependency, distance and accumulated radiation activity. The sensor demonstrates a high sensitivity of 152 photon counts/Gy with a temporal resolution of 0.1 seconds, with the largest repeatability error of 4.1%, to 0.361mCi of Iodine-125 the radioactive source most commonly used in LDR brachytherapy for treating prostate cancer.

Original language	English
Pages (from-to)	4027-4036
Number of pages	10
Journal	Biomedical Optics Express
Volume	11
Issue number	7
DOIs	https://doi.org/10.1364/BOE.385610
Publication status	Published - 1 Jul 2020

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1364/BOE.385610

Cite this

@article{dbfc6cedc2d14503977dac3f9c6c8a4d,

title = "Optical fiber dosimeter for real-time in-vivo dose monitoring during LDR brachytherapy",

abstract = "An optical fiber sensor for monitoring low dose radiation is presented. The sensor, based on radiation sensitive scintillation material, terbium doped gadolinium oxysulphide (Gd2O2S:Tb), is embedded in a cavity of 700μm diameter within a 1mm plastic optical fiber. The sensor is compared with the treatment planning system for repeatability, angular dependency, distance and accumulated radiation activity. The sensor demonstrates a high sensitivity of 152 photon counts/Gy with a temporal resolution of 0.1 seconds, with the largest repeatability error of 4.1%, to 0.361mCi of Iodine-125 the radioactive source most commonly used in LDR brachytherapy for treating prostate cancer.",

author = "P. WOULFE and SULLIVAN, {F. J.} and W. KAM and S. O'KEEFFE",

note = "Publisher Copyright: {\textcopyright} 2020 Optical Society of America.",

year = "2020",

month = jul,

day = "1",

doi = "10.1364/BOE.385610",

language = "English",

volume = "11",

pages = "4027--4036",

journal = "Biomedical Optics Express",

issn = "2156-7085",

number = "7",

}

TY - JOUR

T1 - Optical fiber dosimeter for real-time in-vivo dose monitoring during LDR brachytherapy

AU - WOULFE, P.

AU - SULLIVAN, F. J.

AU - KAM, W.

AU - O'KEEFFE, S.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - An optical fiber sensor for monitoring low dose radiation is presented. The sensor, based on radiation sensitive scintillation material, terbium doped gadolinium oxysulphide (Gd2O2S:Tb), is embedded in a cavity of 700μm diameter within a 1mm plastic optical fiber. The sensor is compared with the treatment planning system for repeatability, angular dependency, distance and accumulated radiation activity. The sensor demonstrates a high sensitivity of 152 photon counts/Gy with a temporal resolution of 0.1 seconds, with the largest repeatability error of 4.1%, to 0.361mCi of Iodine-125 the radioactive source most commonly used in LDR brachytherapy for treating prostate cancer.

AB - An optical fiber sensor for monitoring low dose radiation is presented. The sensor, based on radiation sensitive scintillation material, terbium doped gadolinium oxysulphide (Gd2O2S:Tb), is embedded in a cavity of 700μm diameter within a 1mm plastic optical fiber. The sensor is compared with the treatment planning system for repeatability, angular dependency, distance and accumulated radiation activity. The sensor demonstrates a high sensitivity of 152 photon counts/Gy with a temporal resolution of 0.1 seconds, with the largest repeatability error of 4.1%, to 0.361mCi of Iodine-125 the radioactive source most commonly used in LDR brachytherapy for treating prostate cancer.

UR - http://www.scopus.com/inward/record.url?scp=85087937186&partnerID=8YFLogxK

U2 - 10.1364/BOE.385610

DO - 10.1364/BOE.385610

M3 - Article

AN - SCOPUS:85087937186

SN - 2156-7085

VL - 11

SP - 4027

EP - 4036

JO - Biomedical Optics Express

JF - Biomedical Optics Express

IS - 7

ER -

Optical fiber dosimeter for real-time in-vivo dose monitoring during LDR brachytherapy

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this