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dc.contributor.authorChetty, Indrin J.en_US
dc.contributor.authorCharland, Paule M.en_US
dc.date.accessioned2006-12-19T19:03:53Z
dc.date.available2006-12-19T19:03:53Z
dc.date.issued2002-10-21en_US
dc.identifier.citationChetty, Indrin J; Charland, Paule M (2002). "Investigation of Kodak extended dose range (EDR) film for megavoltage photon beam dosimetry." Physics in Medicine and Biology. 47(20): 3629-3641. <http://hdl.handle.net/2027.42/48973>en_US
dc.identifier.issn0031-9155en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/48973
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=12433124&dopt=citationen_US
dc.description.abstractWe have investigated the dependence of the measured optical density on the incident beam energy, field size and depth for a new type of film, Kodak extended dose range (Kodak EDR). Film measurements have been conducted over a range of field sizes (3 × 3 cm2 to 25 × 25 cm2) and depths (dmax to 15 cm), for 6 MV and 15 MV photons within a solid water phantom, and the variation in sensitometric response (net optical density versus dose) has been reported. Kodak EDR film is found to have a linear response with dose, from 0 to 350 cGy, which is much higher than that typically seen for Kodak XV film (0–50 cGy). The variation in sensitometric response for Kodak EDR film as a function of field size and depth is observed to be similar to that of Kodak XV film; the optical density varied in the order of 2–3% for field sizes of 3 × 3 cm2 and 10 × 10 cm2 at depths of dmax, 5 cm and 15 cm in the phantom. Measurements for a 25 × 25 cm2 field size showed consistently higher optical densities at depths of dmax, 5 cm and 15 cm, relative to a 10 × 10 cm2 field size at 5 cm depth, with 4–5% differences noted at a depth of 15 cm. Fractional depth dose and profiles conducted with Kodak EDR film showed good agreement (2%/2 mm) with ion chamber measurements for all field sizes except for the 25 × 25 cm2 at depths greater than 15 cm, where differences in the order of 3–5% were observed. In addition, Kodak EDR film measurements were found to be consistent with those of Kodak XV film for all fractional depth doses and profiles. The results of this study indicate that Kodak EDR film may be a useful tool for relative dosimetry at higher dose ranges.en_US
dc.format.extent3118 bytes
dc.format.extent289387 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherIOP Publishing Ltden_US
dc.titleInvestigation of Kodak extended dose range (EDR) film for megavoltage photon beam dosimetryen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109-0010, USAen_US
dc.contributor.affiliationumDepartment of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109-0010, USAen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.identifier.pmid12433124en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/48973/2/m22005.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1088/0031-9155/47/20/305en_US
dc.identifier.sourcePhysics in Medicine and Biology.en_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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