2nd Generation Eye Physics Plaques

Eye Physics 2nd Generation (manually prototyped) Plaques: click on a model for more information

The physical dimensions of a plaque are only a rough estimator of the dosimetric coverage a plaque delivers to the base of a tumor. Dosimetric coverage is significantly influenced by the Rx altitude, seed angular orientation and optional intensity modulation of the radionuclide seed strengths in the plaque. Coverage can be several mm smaller or larger than the physical dimensions of the plaque itself.

EP517
14 mm circular
1.5 mm thick, 17 shallow seed positions

EP917
12.4x14.4 mm semi-elliptical, gentle notch
1.5 mm thick, 17 shallow seed positions

EP930
17.4x15.0 mm semi-elliptical, deep notch
1.5 mm thick, 30 shallow seed positions

EP2025
16.4x16.2 mm semi-rectangular
1.7 mm thick, 25 deep seed positions

EP2031
18.6 mm diameter circular
1.5 mm thick, 31 shallow seed positions

EP2029
18.1x15.1 mm circular, mild notch
1.5 mm thick, 29 shallow seed positions

EP2342
19.9 mm dimaeter circular
1.5 mm thick, 42 seed positions

EP2340
19.9x17.9 mm circular, mild notch
1.5 mm thick, 40 seed positions

EP2249
20.1x18.8 mm semi-circular, mild notch
1.5 mm thick, 49 shallow seed positions

EP1925
16.7x17.0 mm semi rectangular
1.8 mm thick, 25 deep seed positions

EPDonut
23.6 mm diameter circular
1.5 mm thick, 34 shallow seed positions

PS6 includes .iplq6 files with embedded pictures of the face of all Eye Physics 2nd generation (manually prototyped) plaques.

Seed coordinates and other information

When seed coordinates are displayed, the origin of the plaque coordinate system is shifted to the center of the concave surface of the plaque. The X axis of this coordinate system is the Central AXis (CAX) of the plaque. In the Plaque window you are looking at a 2D projection of the plaque onto the YZ plane.

You can often click pictures with coordinates to see an enlarged view with easier to read text.

If you need seed coordinates for a spreadsheet or some other application they can also be found in the .iqa6 (xml) files that are created for the PSQACheck application.

The physical dimensions of a plaque are only a rough estimator of the dosimetric coverage a plaque delivers to the base of a tumor. Dosimetric coverage is significantly influenced by the Rx altitude and optional intensity modulation of the radionuclide seed strengths in the plaque. Coverage can be several mm smaller or larger than the physical dimaensions of the plaque itself.