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Dosimetry tools and techniques for IMRT
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10.1118/1.3514120
/content/aapm/journal/medphys/38/3/10.1118/1.3514120
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/38/3/10.1118/1.3514120

Figures

Image of FIG. 1.
FIG. 1.

Examples of fractional measured ionization collection errors due to system leakage current for a 200 cGy IMRT dose distribution measurement for a variety of ionization chamber volumes and system leakage currents. (a) Measurement error for a volume ionization chamber. (b) Measurement error for a volume ionization chamber. (c) Measurement error for a volume ionization chamber.

Image of FIG. 2.
FIG. 2.

Example of a matrix detector.

Image of FIG. 3.
FIG. 3.

Superimposed dose distributions intended to compare IMRT dose distributions. In this case, the solid and dashed lines are the calculated and measured distributions, respectively. When the superimposed isodoses overlap, the reviewer can readily see that they agree. However, when the doses differ, such as in the high-dose region in this example, a quantitative evaluation is difficult. Reference is from Childress et al. (Ref. 162).

Image of FIG. 4.
FIG. 4.

Example of dose distribution evaluation and display tools. Examples are from Childress and Rosen (Ref. 162).

Image of FIG. 5.
FIG. 5.

Numerically defined dose distributions provided to illustrate dose distribution comparison tools. Examples are from Low and Dempsey (Ref. 163).

Image of FIG. 6.
FIG. 6.

Example of the use of the and angle tools is from Stock et al. (Ref. 164).

Image of FIG. 7.
FIG. 7.

Comparison between and as defined by Bakai et al. (Ref. 175).

Tables

Generic image for table
TABLE I.

A partial list of commercially available small-volume ion chambers. For standard Imaging/Exradin chambers, the chamber materials are designated as model A—Shonka C552, model M—pure magnesium, and T—Shonka A150.

Generic image for table
TABLE II.

Summary of a few commercially available solid state detectors.

Generic image for table
TABLE III.

Summary of some commercially available electrometers.

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/content/aapm/journal/medphys/38/3/10.1118/1.3514120
2011-02-16
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dosimetry tools and techniques for IMRT
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/38/3/10.1118/1.3514120
10.1118/1.3514120
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