Dose Distribution in Large Container Filled with Potatoes Treated by γ-Irradiation
1973 Volume 20 Issue 10 Pages 492-494
Details
1973 Volume 20 Issue 10 Pages 492-494
The commercial irradiation to inhibit the sprouting of potatoes was offcially approved in August 1972, in Japan. Now the construction of an industrial radiation facility with large containers is planned to process potatoes. The absorption dose of irradiated potatoes by such facility should be in the range from minimum effective dose to maximum dose of 15 krad.
So the dose distribution in the large container (100×160×130cm) filled with potatoes was measured with Fricke dosimeter. The dose uniformity ratios (Dmax/Dmin calculated from observed values when the container was reversed at half dose)were 3.00 and 2.47 at the distance of 205 and 398cm from source, respectively. From these results, it seemed that the distance from source to container must be more than 4m to achieve a dose uniformity ratio of 2.50.
