| 摘要 |
PROBLEM TO BE SOLVED: To enable environmental space dose rates to be measured without expanding the measured area in the horizontal direction.SOLUTION: An environmental radioactivity distribution measuring method comprises a first measuring step S01 of measuring space dose rates at least three measuring points, differing from one another in height, on a vertical line in a first horizontal position; a second measuring step S02 and a third measuring step S03 of measuring space dose rates at measuring points in respectively second and third horizontal positions; response function determining steps S04 and S05 of supposing a response function between each measuring point attributable to a radiation source in each part of the measuring range and the space dose rate at each measuring point and determining the response function on the basis of the measurement result; and a radiation source distribution calculating step S06 of calculating, on the basis of the determined response functions, the planar distribution of radiation sources on the ground.SELECTED DRAWING: Figure 5 |
