A 3-D dosimeter for complex-shaped foods using electron-beam irradiation
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A chemical solution composed of paraffin wax, chloroform, and methyl yellow was shaped into a solid 3-D apple-phantom to determine absorbed dose from e-beams. The purpose of this study was to develop a 3-D dosimeter to visualize 3-D dose distribution in complex-shaped food products. Intensity data of an apple-phantom irradiated at 45 with a Van de Graaff accelerator was generated by slicing the phantom into 16 slices, each with 3.175 mm thickness. Three-dimensional representations were produced using the individual data for each phantom slice. The main advantage of using the apple-phantom is that the absorbed dose distribution can be visually seen in 3-D. It clearly helps to demonstrate that the dose distribution and dose depth profiles may be different depending on the reference plane chosen for the dosimetry analysis. 2007 American Society of Agricultural and Biological Engineers.