Zobrazeno 1 - 10
of 86
pro vyhledávání: '"D. W. O. Rogers"'
Autor:
V N, Malkov, D W O, Rogers
Publikováno v:
Medical physics. 43(7)
To accurately and efficiently implement charged particle transport in a magnetic field in EGSnrc and validate the code for the use in phantom and ion chamber simulations.The effect of the magnetic field on the particle motion and position is determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::fcc33a2736991c4b0eb694be0c118743
https://pubmed.ncbi.nlm.nih.gov/27370160
https://pubmed.ncbi.nlm.nih.gov/27370160
Autor:
M, Rodriguez, D W O, Rogers
Publikováno v:
Medical physics. 41(11)
To more accurately account for the relative intrinsic energy dependence and relative absorbed-dose energy dependence of TLDs when used to measure dose rate constants (DRCs) for (125)I and (103)Pd brachytherapy seeds, to thereby establish revised "mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5cafdd33acdc62d4322c5c6503cbdd10
https://pubmed.ncbi.nlm.nih.gov/25370677
https://pubmed.ncbi.nlm.nih.gov/25370677
Autor:
B R, Muir, D W O, Rogers
Publikováno v:
Medical physics. 41(11)
To provide a comprehensive investigation of electron beam reference dosimetry using Monte Carlo simulations of the response of 10 plane-parallel and 18 cylindrical ion chamber types. Specific emphasis is placed on the determination of the optimal shi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::89178ca3d0300a97d8b5d5713640f9e1
https://pubmed.ncbi.nlm.nih.gov/25370615
https://pubmed.ncbi.nlm.nih.gov/25370615
Autor:
B R, Muir, D W O, Rogers
Publikováno v:
Medical physics. 40(12)
To investigate recommendations for reference dosimetry of electron beams and gradient effects for the NE2571 chamber and to provide beam quality conversion factors using Monte Carlo simulations of the PTW Roos and NE2571 ion chambers.The EGSnrc code
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::7392a48aa37c137c6bc5589c3c612fca
https://pubmed.ncbi.nlm.nih.gov/24320508
https://pubmed.ncbi.nlm.nih.gov/24320508
Autor:
M, Rodriguez, D W O, Rogers
Publikováno v:
Medical physics. 40(1)
To investigate several aspects of the Chen and Nath spectroscopic method of determining the dose rate constants of (125)I and (103)Pd seeds [Z. Chen and R. Nath, Phys. Med. Biol. 55, 6089-6104 (2010)] including the accuracy of using a line or dual-po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9326c8fcb63b5ad2b2e75f5e70d14009
https://pubmed.ncbi.nlm.nih.gov/23298083
https://pubmed.ncbi.nlm.nih.gov/23298083
Publikováno v:
Medical physics. 39(11)
In a recent computational study, an improved physics-based approach was proposed for unfolding linac photon spectra and incident electron energies from transmission data. In this approach, energy differentiation is improved by simultaneously using tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::84e7c4d3d8281c78d32b7d93f3ded44c
https://pubmed.ncbi.nlm.nih.gov/23127053
https://pubmed.ncbi.nlm.nih.gov/23127053
Autor:
Sou-Tung, Chiu-Tsao, Melvin A, Astrahan, Paul T, Finger, David S, Followill, Ali S, Meigooni, Christopher S, Melhus, Firas, Mourtada, Mary E, Napolitano, Ravinder, Nath, Mark J, Rivard, D W O, Rogers, Rowan M, Thomson
Publikováno v:
Medical physics. 39(10)
Dosimetry of eye plaques for ocular tumors presents unique challenges in brachytherapy. The challenges in accurate dosimetry are in part related to the steep dose gradient in the tumor and critical structures that are within millimeters of radioactiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::654f0c541d13e741e9546ddccb93671f
https://pubmed.ncbi.nlm.nih.gov/23039655
https://pubmed.ncbi.nlm.nih.gov/23039655
Publikováno v:
Medical physics. 39(10)
There are three goals for this study: (a) to perform detailed megavoltage transmission measurements in order to identify the factors that affect the measurement accuracy, (b) to use the measured data as a benchmark for the EGSnrc system in order to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::97bc71e50285ba4eb6973e3ede490246
https://pubmed.ncbi.nlm.nih.gov/23039637
https://pubmed.ncbi.nlm.nih.gov/23039637
Autor:
E S M, Ali, D W O, Rogers
Publikováno v:
Medical physics. 39(3)
To develop a physics-based approach to improve the accuracy and robustness of the ill-conditioned problem of unfolding megavoltage bremsstrahlung spectra from transmission data.Spectra are specified using a rigorously-benchmarked functional form. Sin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9449200c3d11ee61bca023297f69896f
https://pubmed.ncbi.nlm.nih.gov/22380398
https://pubmed.ncbi.nlm.nih.gov/22380398
Publikováno v:
Medical physics. 39(3)
To investigate the behavior of plane-parallel ion chambers in high-energy photon beams through measurements and Monte Carlo simulations.Ten plane-parallel ion chamber types were obtained from the major ion chamber manufacturers. Absorbed dose-to-wate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::51210030a556dfe4b545050722617713
https://pubmed.ncbi.nlm.nih.gov/22380394
https://pubmed.ncbi.nlm.nih.gov/22380394