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Dose-response curve of EBT, EBT2, and EBT3 radiochromic films to synchrotron-produced monochromatic x-ray beams
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10.1118/1.4767770
/content/aapm/journal/medphys/39/12/10.1118/1.4767770
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/12/10.1118/1.4767770

Figures

Image of FIG. 1.
FIG. 1.

Net optical density versus dose for EBT film. The film was calibrated at 35 keV (filled squares) and 4 MV (hollow squares). Both sets of data were fitted with the function shown in Eq. (2).

Image of FIG. 2.
FIG. 2.

Net optical density versus dose for EBT2 film. The film was calibrated at 25 keV (circles), 30 keV (triangles), 35 keV (filled squares), and 4 MV (hollow squares). Each set of data were fitted with the function shown in Eq. (2).

Image of FIG. 3.
FIG. 3.

Net optical density versus dose for EBT3 film. The film was calibrated at 25 keV (circles), 30 keV (triangles), 35 keV (filled squares), and 4 MV (hollow squares). Each set of data were fitted with the function shown in Eq. (2).

Tables

Generic image for table
TABLE I.

TG-61 ion chamber calibration and correction factors used for dose calculations at 25, 30, and 35 keV. Measurements of PTP, Pion, and Ppol were repeated for each set of depth-dose measurements and the range of values obtained are shown here (only one set of Pion and Ppol measurements were made at 30 keV).

Generic image for table
TABLE II.

Comparison of film sensitivity with beam energy for doses 50, 100, and 200 cGy. The relative sensitivity was calculated using net optical density values determined from the fitted calibration function given in Eq. (2).

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/content/aapm/journal/medphys/39/12/10.1118/1.4767770
2012-11-27
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dose-response curve of EBT, EBT2, and EBT3 radiochromic films to synchrotron-produced monochromatic x-ray beams
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/12/10.1118/1.4767770
10.1118/1.4767770
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