Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Levi Madden"'
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
For the past few decades, fibre-optic dosimeters (FODs) have been a focus of research for dosimetry with LINACs, owing to a unique set of advantageous qualities: compact dosimeter sizes, an all optical composition (i.e. no wires or electronics around
Externí odkaz:
https://doaj.org/article/5e22e30f8565457e9209028aa928e866
Autor:
Abdella M Ahmed, Maegan Gargett, Levi Madden, Adam Mylonas, Danielle Chrystall, Ryan Brown, Adam Briggs, Trang Nguyen, Paul Keall, Andrew Kneebone, George Hruby, Jeremy Booth
Publikováno v:
Biomedical Physics & Engineering Express. 9:035008
Real-time target position verification during pancreas stereotactic body radiation therapy (SBRT) is important for the detection of unplanned tumour motions. Fast and accurate fiducial marker segmentation is a Requirement of real-time marker-based ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b30a4c1f853e320114b095bf3292e6e
https://doi.org/10.1088/2057-1976/acb550
https://doi.org/10.1088/2057-1976/acb550
Publikováno v:
Medical Physics. 46:1833-1839
PURPOSE The removal of Cherenkov light in an optical dosimetry system is an important process to ensure accurate dosimetry without compromising spatial resolution. Many solutions have been presented in the literature, each with advantages and disadva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f33819cf6b2b4d6ab12758d3c84284b
https://doi.org/10.1002/mp.13383
https://doi.org/10.1002/mp.13383
Autor:
Shahraam Afshar, Raghu Gowda, Enbang Li, Anatoly B. Rosenfeld, Alexandre M. Caraça Santos, Eva Bezak, Levi Madden
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 80
A new analysis method for the rtOSL of BeO ceramics is presented, using temporal curve fitting of an expected rtOSL signal to measured rtOSL signals. The presented technique does not require heavy signal averaging to determine the OSL bleaching corre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c4dc5b7fb5f68ae8a6158f26a86e1a7
https://pubmed.ncbi.nlm.nih.gov/33070008
https://pubmed.ncbi.nlm.nih.gov/33070008
Autor:
Lois Holloway, Urszula Jelen, James Archer, Bin Dong, Anatoly B. Rosenfeld, Levi Madden, Enbang Li
Publikováno v:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 73
Plastic scintillation dosimeters (PSDs) possess many desirable qualities for dosimetry with LINACs. These qualities are expected to make PSDs effective for MRI-LINAC dosimetry, however little research has been conducted investigating their dosimetric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf0ac81c479ddc94c651690c94da006a
https://pubmed.ncbi.nlm.nih.gov/32361155
https://pubmed.ncbi.nlm.nih.gov/32361155
Publikováno v:
Physica Medica. 54:131-136
The irradiation of scintillator-fiber optic dosimeters by clinical LINACs results in the measurement of scintillation and Cerenkov radiation. In scintillator-fiber optic dosimetry, the scintillation and Cerenkov radiation responses are separated to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec1c8dd077c89dde33b63cc46fe65a5a
https://doi.org/10.1016/j.ejmp.2018.10.007
https://doi.org/10.1016/j.ejmp.2018.10.007
Autor:
Enbang Li, P. J. Veitch, Alexandre M. Caraça Santos, Erin Lukas, Anatoly B. Rosenfeld, Levi Madden, Miftar Ganija
Publikováno v:
Radiation Measurements. 149:106680
A novel method is presented to correct the non-linearity of real-time optically stimulated luminescence (rtOSL), investigated for a fibre-coupled BeO dosimetry system. The presented method applies novel kinetic modelling techniques to model the time-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c53e67aede1c180aac7e28da5e51181
https://doi.org/10.1016/j.radmeas.2021.106680
https://doi.org/10.1016/j.radmeas.2021.106680
Autor:
Marco Petasecca, Peter E Metcalfe, Levi Madden, Anatoly B. Rosenfeld, Enbang Li, James Archer, Martin G Carolan
Publikováno v:
Physica Medica. 42:185-188
Cherenkov radiation is generated in optical systems exposed to ionising radiation. In water or plastic devices, if the incident radiation has components with high enough energy (for example, electrons or positrons with energy greater than 175 keV), C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55c821e2b934e7fc82622e822bf93002
https://doi.org/10.1016/j.ejmp.2017.09.134
https://doi.org/10.1016/j.ejmp.2017.09.134
Autor:
Anatoly B. Rosenfeld, Urszula Jelen, Levi Madden, Bin Dong, Natalia Roberts, Enbang Li, Lois Holloway, Peter E Metcalfe
Publikováno v:
Biomedical Physics & Engineering Express. 7:025012
Plastic scintillation dosimeters (PSDs) have many properties that make them desirable for relative dosimetry with MRI-LINACs. An in-house PSD, Farmer ionisation chamber and Gafchromic EBT3 film were used to measure central axis percentage depth dose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff24aa62b3c128ea27608ba07bfa2ada
https://doi.org/10.1088/2057-1976/abe295
https://doi.org/10.1088/2057-1976/abe295
Publikováno v:
Radiation Physics and Chemistry. 166:108490
As part of clinical safety for radiation therapy, quality assurance is vital to ensure that the delivered dose matches the prescribed dose for any targeted volumes and surrounding healthy tissue. A challenge when measuring the beam quality, especiall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::880ee0385129ad99f572f84f1b608cff
https://doi.org/10.1016/j.radphyschem.2019.108490
https://doi.org/10.1016/j.radphyschem.2019.108490