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Lam S, Bradley D, Khandaker M. Small-field radiotherapy photon beam output evaluation: Detectors reviewed. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.108950] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bradley D, Khandaker M, Alanazi A. Irradiated glass and thermoluminescence yield: Dosimetric utility reviewed. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108680] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Alyahyawi A, Siti Rozaila Z, Siti Shafiqah A, Sabtu SN, Alsubaie A, Alanazi A, Daar E, Abdul Sani S, Bradley D. Investigation of silica-based TL media for diagnostic x-ray dosimetry. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.12.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Moradi F, Khandaker M, Mahdiraji G, Ung N, Bradley D. Dose mapping inside a gamma irradiator measured with doped silica fibre dosimetry and Monte Carlo simulation. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.01.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Woulfe P, Sullivan FJ, O’Keeffe S. Optical fibre sensors: their role in in vivo dosimetry for prostate cancer radiotherapy. Cancer Nanotechnol 2016; 7:7. [PMID: 27818715 PMCID: PMC5069313 DOI: 10.1186/s12645-016-0020-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 10/06/2016] [Indexed: 11/21/2022] Open
Abstract
Review is made of dosimetric studies of current optical fibre technology in radiotherapy for therapeutic applications, focusing particularly on in vivo dosimetry for prostate radiotherapy. We present the various sensor designs along with the main advantages and disadvantages associated with this technology. Optical fibres are ideally placed for applications in radiotherapy dosimetry; due to their small size they are lightweight and immune to electromagnetic interferences. The small dimensions of optical fibres allows it to be easily guided within existing brachytherapy equipment; for example, within the seed implantation needle for direct tumour dose analysis, in the urinary catheter to monitor urethral dose, or within the biopsy needle holder of the transrectal ultrasound probe to monitor rectal wall dose. The article presents the range of optical fibre dosimeter designs along with the main dosimetric properties required for a modern in vivo dosimetry system to be utilised in a clinical environment.
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Affiliation(s)
- P. Woulfe
- Optical Fibre Sensors Research Centre, University of Limerick, Limerick, Ireland
- Department of Radiotherapy Physics, Galway Clinic, Galway, Ireland
| | - F. J. Sullivan
- Prostate Cancer Institute, National University of Ireland Galway, Galway, Ireland
- Department of Radiotherapy, Galway Clinic, Galway, Ireland
| | - S. O’Keeffe
- Optical Fibre Sensors Research Centre, University of Limerick, Limerick, Ireland
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Radiotherapy dosimetry and the thermoluminescence characteristics of Ge-doped fibres of differing germanium dopant concentration and outer diameter. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2016.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Begum M, Rahman AM, Abdul-Rashid H, Yusoff Z, Begum M, Mat-Sharif K, Amin Y, Bradley D. Thermoluminescence characteristics of Ge-doped optical fibers with different dimensions for radiation dosimetry. Appl Radiat Isot 2015; 100:79-83. [DOI: 10.1016/j.apradiso.2014.10.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/30/2014] [Accepted: 10/30/2014] [Indexed: 11/30/2022]
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O'Keeffe S, McCarthy D, Woulfe P, Grattan MWD, Hounsell AR, Sporea D, Mihai L, Vata I, Leen G, Lewis E. A review of recent advances in optical fibre sensors for in vivo dosimetry during radiotherapy. Br J Radiol 2015; 88:20140702. [PMID: 25761212 PMCID: PMC4628446 DOI: 10.1259/bjr.20140702] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/19/2015] [Accepted: 03/10/2015] [Indexed: 11/05/2022] Open
Abstract
This article presents an overview of the recent developments and requirements in radiotherapy dosimetry, with particular emphasis on the development of optical fibre dosemeters for radiotherapy applications, focusing particularly on in vivo applications. Optical fibres offer considerable advantages over conventional techniques for radiotherapy dosimetry, owing to their small size, immunity to electromagnetic interferences, and suitability for remote monitoring and multiplexing. The small dimensions of optical fibre-based dosemeters, together with being lightweight and flexible, mean that they are minimally invasive and thus particularly suited to in vivo dosimetry. This means that the sensor can be placed directly inside a patient, for example, for brachytherapy treatments, the optical fibres could be placed in the tumour itself or into nearby critical tissues requiring monitoring, via the same applicators or needles used for the treatment delivery thereby providing real-time dosimetric information. The article outlines the principal sensor design systems along with some of the main strengths and weaknesses associated with the development of these techniques. The successful demonstration of these sensors in a range of different clinical environments is also presented.
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Affiliation(s)
- S O'Keeffe
- Optical Fibre Sensors Research Centre, Department of Electronic and Computer Engineering, University of Limerick, Limerick, Ireland
| | - D McCarthy
- Optical Fibre Sensors Research Centre, Department of Electronic and Computer Engineering, University of Limerick, Limerick, Ireland
| | - P Woulfe
- Department of Radiotherapy Physics, Galway Clinic, Galway, Ireland
| | - M W D Grattan
- Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - A R Hounsell
- Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - D Sporea
- Laser Metrology Laboratory, National Institute for Laser, Plasma and Radiation Physics, Magurele, Romania
| | - L Mihai
- Laser Metrology Laboratory, National Institute for Laser, Plasma and Radiation Physics, Magurele, Romania
| | - I Vata
- “Horia Hulubei” National Institute of Physics and Nuclear Engineering, Magurele, Romania
| | - G Leen
- Optical Fibre Sensors Research Centre, Department of Electronic and Computer Engineering, University of Limerick, Limerick, Ireland
| | - E Lewis
- Optical Fibre Sensors Research Centre, Department of Electronic and Computer Engineering, University of Limerick, Limerick, Ireland
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Bradley D, Abdul Sani SF, Alalawi AI, Jafari S, Noor NM, Hairul Azhar A, Mahdiraji GA, Tamchek N, Ghosh S, Paul M, Alzimami KS, Nisbet A, Maah M. Development of tailor-made silica fibres for TL dosimetry. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.03.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Huseynov E, Garibov A, Mehdiyeva R. Study of blend composition of nano silica under the influence of neutron flux. NANO CONVERGENCE 2014; 1:21. [PMID: 28191401 PMCID: PMC5271144 DOI: 10.1186/s40580-014-0021-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 06/15/2014] [Indexed: 06/06/2023]
Abstract
Nano SiO2 compound with 160 m2/g specific surface area and 20 nm sizes has been irradiated continuously with neutron flux up to 20 hours in various periods in TRIGA Mark II type research reactor. The initial activities of different type radionuclides defined in the result of eight day activity analysis changes between wide range of 1,5 kBq- 1,5GBq. In the result of activity analysis carried out after the irradiation, the element content of 0,5% mixture existing in nano SiO2 compound has been defined with radionuclides of relevant element. It has been defined percentage amounts of elements in blend composition according to the performed activities.
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Affiliation(s)
- Elchin Huseynov
- Institute of Radiation Problems of Azerbaijan National Academy of Sciences, AZ 1143, B. Vahabzadeh 9, Baku, Azerbaijan
| | - Adil Garibov
- Institute of Radiation Problems of Azerbaijan National Academy of Sciences, AZ 1143, B. Vahabzadeh 9, Baku, Azerbaijan
| | - Ravan Mehdiyeva
- Institute of Radiation Problems of Azerbaijan National Academy of Sciences, AZ 1143, B. Vahabzadeh 9, Baku, Azerbaijan
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