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Characterization of a water-equivalent fiber-optic coupled dosimeter for use in diagnostic radiology
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10.1118/1.3116362
/content/aapm/journal/medphys/36/5/10.1118/1.3116362
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/5/10.1118/1.3116362

Figures

Image of FIG. 1.
FIG. 1.

Completed FOC dosimeter.

Image of FIG. 2.
FIG. 2.

FOC dosimetry system schematic, power supplies for serial-to-USB hub, and PMTs not shown.

Image of FIG. 3.
FIG. 3.

Energy dependence of FOC dosimeter. Data have been normalized to the data point at 120 kVp. Error bars correspond to ±1 standard deviation of the mean.

Image of FIG. 4.
FIG. 4.

Energy dependence of FOC dosimeter as a function of depth in soft tissue-equivalent material. Data have been normalized to the surface measurement , which corresponds to the 120 kVp measurement in Fig. 3. Error bars correspond to ±1 standard deviation of the mean.

Image of FIG. 5.
FIG. 5.

Dose linearity of FOC dosimeter.

Image of FIG. 6.
FIG. 6.

Response of FOC dosimeter versus the bend radius of the optical fiber. Data have been normalized to a bend radius of infinity. Error bars correspond to ±1 standard deviation of the mean.

Image of FIG. 7.
FIG. 7.

Angular dependence of FOC dosimeter to an axial irradiation. Data have been normalized to a zero-degree axial angular response. Error bars correspond to ±1 standard deviation of the mean. Experimental setup is also shown. Shaded area represents a head on view of the sensitive element of the FOC dosimeter.

Image of FIG. 8.
FIG. 8.

Angular dependence of FOC dosimeter to a normal-to-axial irradiation. Data have been normalized to a zero-degree axial angular response. Error bars correspond to ±1 standard deviation of the mean. Experimental setup is also shown. Shaded area represents a side view of the sensitive element of the FOC dosimeter.

Tables

Generic image for table
TABLE I.

Reproducibility of measurements with FOC dosimeter.

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/content/aapm/journal/medphys/36/5/10.1118/1.3116362
2009-04-16
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Characterization of a water-equivalent fiber-optic coupled dosimeter for use in diagnostic radiology
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/5/10.1118/1.3116362
10.1118/1.3116362
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