Method and apparatus for scanning 3D dosimeters

摘要

The present invention discloses a device to measure optical properties of a three-dimensional transparent dosimeter, and a method to use the device to produce a valid, reproducible, and quantitative image of optical properties across essentially the entire volume of the transparent dosimeter. The invention provides significant and useful improvements over existing practice.

主权项

1. An assembly for refractive index matching in Optical Computerized Tomographic scanning comprising:
a light source, a light detector, a transparent solid plastic block fabricated with a dosimeter cavity, wherein the shape of the said dosimeter cavity is selected from the set consisting of essentially a cylinder, essentially an inverted truncated cone, essentially an inverted cone with one convex face, and essentially identical to the dosimeter; an irradiated dosimeter inserted into said cavity; so that the interspace between the edge of said cavity and the edge of said dosimeter is between 0.5 and 5 mm; a mechanism to cause the rotation of the dosimeter within the dosimeter cavity; and a computer programmed to store data from said detector, and perform the reconstruction of said data to render a three-dimensional image representing the information contained within said irradiated dosimeter.