Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Plato C. Lee"'
Publikováno v:
Medical Dosimetry. 28:243-253
An innovative (and yet simple) dosimetric model is proposed that provides a semi-analytical solution to the total activity-volume relationship in ultrasound-guided transperineal prostate implant. This dosimetric model is based on 4 simple assumptions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f7ade06e307736956c72feb6064052d
https://doi.org/10.1016/j.meddos.2003.03.001
https://doi.org/10.1016/j.meddos.2003.03.001
Publikováno v:
Radiation Oncology Investigations. 7:374-381
A simple five-seed assay method was proposed and investigated. A commercial well ion chamber system with an NIST-traceable single-seed calibration constant was used for the single-seed assays. A batch seed holder was used for batch assays. For the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3ed8aa2d10704589a1ad5afde351ae5
https://doi.org/10.1002/(sici)1520-6823(1999)7:6<374::aid-roi8>3.0.co
https://doi.org/10.1002/(sici)1520-6823(1999)7:6<374::aid-roi8>3.0.co
Autor:
Plato C. Lee
Publikováno v:
Medical Dosimetry. 21:227-233
Certain fundamental dosimetrical parameters involving the applications of asymmetric jaws were investigated. The nominal accelerating potentials (NAPs) were found to decrease from 5.1 to 4.2 and from 18.0 to 13.4 for the 6 and 18 MV beams, respective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c01cdf6eff80d8090a1f14e2604215f6
https://doi.org/10.1016/s0958-3947(96)00128-8
https://doi.org/10.1016/s0958-3947(96)00128-8
Autor:
Plato C. Lee, Gleen P. Glasgow
Publikováno v:
Medical Dosimetry. 19:141-144
The beam-hardening effects of the wedges on a 6-MV spoiled beam has been studied. The beam quality of all the wedged beams was found to be the same as the open beam. The dmax also stayed unchanged for all the wedges at all field sizes. The relative w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f7a7f2f8c0109706d141bc5c501ef7b
https://doi.org/10.1016/0958-3947(94)90046-9
https://doi.org/10.1016/0958-3947(94)90046-9
Publikováno v:
Medical physics. 30(10)
This study describes one institution's experience with seed retrieval through the urinary tract and makes recommendations for cystoscopy and urine straining post prostate brachytherapy (PB). 1794 patients from two separate cohorts covering different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b29af93a4496c0dbb1bd15493c7d259
https://pubmed.ncbi.nlm.nih.gov/14596306
https://pubmed.ncbi.nlm.nih.gov/14596306
Autor:
Glenn P. Glasgow, Plato C. Lee
Publikováno v:
Medical dosimetry : official journal of the American Association of Medical Dosimetrists. 23(2)
In July 1996, Kodak released new film-screen systems with enhanced contrast (EC) for portal localization with megavoltage therapeutic beams. This study presents the generation of general-purpose technique charts for Kodak's new film-screen combinatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e607c0e99de93031ac884f79c662c5bd
https://pubmed.ncbi.nlm.nih.gov/9664278
https://pubmed.ncbi.nlm.nih.gov/9664278
Autor:
Plato C. Lee
Publikováno v:
Medical physics. 24(9)
A quantitative study of the differential beam hardening effect of the flattening filter on the 6-MV beam of Clinac 2100C has been conducted with Monte Carlo simulations using EGS4 code. The fluence-weighted photon energy of the unfiltered beam decrea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::130133dc32f9d8160c6aebb23b0e835e
https://pubmed.ncbi.nlm.nih.gov/9304577
https://pubmed.ncbi.nlm.nih.gov/9304577
Autor:
Plato C. Lee
Publikováno v:
Medical dosimetry : official journal of the American Association of Medical Dosimetrists. 22(1)
Consistent collimator overlaps in field matching with computer-controlled asymmetric x-ray collimators have been observed and investigated. The results indicate that, although this consistent overlapping is small and within manufacturer's +/- 1 mm di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9502e269e0e7dd2cefe072305937bee9
https://pubmed.ncbi.nlm.nih.gov/9136110
https://pubmed.ncbi.nlm.nih.gov/9136110
Publikováno v:
International journal of radiation oncology, biology, physics. 29(5)
Purpose: To evaluate a commercial silicone diode dosimeter for a patient dosimetry quality assurance program. Methods and Materials: The diode dosimeter was calibrated against an ion chamber and percentage depth dose, linearity, anisotropy, virtual s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::130802c62fc7853cc22296730d47e503
https://pubmed.ncbi.nlm.nih.gov/7751202
https://pubmed.ncbi.nlm.nih.gov/7751202
Publikováno v:
Medical physics. 20(3)
A beam spoiler for a 6-MV x-ray beam was designed and spoiled beam dosimetry performed. The spoiled beam quality was similar to that of the unspoiled beam. The percentage depth doses at 5 mm were at least 90% for all field sizes except 4 x 4 cm, whil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fb44a32b694ea6fe9b3415b0958640e
https://pubmed.ncbi.nlm.nih.gov/8350824
https://pubmed.ncbi.nlm.nih.gov/8350824