1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
TG-69: Radiographic film for megavoltage beam dosimetry
Rent:
Rent this article for
USD
10.1118/1.2736779
/content/aapm/journal/medphys/34/6/10.1118/1.2736779
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/34/6/10.1118/1.2736779

Figures

Image of FIG. 1.
FIG. 1.

Gurney and Mott model of latent image (Ref. 29). AgBr remains in ionic form in the crystal of the grain. Radiation produces ionization of to . These electrons make the speck negatively charged. The migrate to neutralize the speck and forms a lump of Ag (aggregate) on the speck.

Image of FIG. 2.
FIG. 2.

Different representation of the film response and radiation dose. Upper panel is used in diagnostic radiology, whereas lower panel is useful in radiation therapy.

Image of FIG. 3.
FIG. 3.

Grain morphology: 3D, tubular, cubic, and others found in radiographic films. Adopted from Haus (Ref. 24) and Cheng and Das (Ref. 33). The upper panels of the figures have different magnification than the lower panels.

Image of FIG. 4.
FIG. 4.

Effect of temperature on OD of various films used in radiology adopted from Haus (Ref. 24).

Image of FIG. 5.
FIG. 5.

Effect of developer temperature on various properties of the films. Solid line for 3D grain film and dashed line for the cubic grain (Ref. 24).

Image of FIG. 6.
FIG. 6.

Energy dependence of the optical density of XV film. Adopted from Muench et al. (Ref. 51).

Image of FIG. 7.
FIG. 7.

Exposure-rate dependence of DuPont 502 film with x rays. Adopted from Ehrlich (Ref. 55).

Image of FIG. 8.
FIG. 8.

Typical point densitometer.

Image of FIG. 9.
FIG. 9.

Film response curves.

Tables

Generic image for table
TABLE I.

Physical properties of Kodak films.

Generic image for table
TABLE II.

Film processor tests.

Generic image for table
TABLE III.

Vendor supplied specifications of some point densitometers.

Generic image for table
TABLE IV.

Acceptance tests and QA of point densitometers.

Generic image for table
TABLE V.

Acceptance tests and QA of 2D scanners.

Generic image for table
TABLE VI.

Expected film dosimetry accuracy under ideal conditions (optimal processor and densitometer performance).

Loading

Article metrics loading...

/content/aapm/journal/medphys/34/6/10.1118/1.2736779
2007-05-25
2014-04-24
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: TG-69: Radiographic film for megavoltage beam dosimetry
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/34/6/10.1118/1.2736779
10.1118/1.2736779
SEARCH_EXPAND_ITEM