| 摘要 |
PROBLEM TO BE SOLVED: To provide a contaminated condition estimation method enabling a contaminated condition of the inner wall surface of a tank having stored radioactive contaminated water to be estimated relatively accurately.SOLUTION: The contaminated condition estimation method according to the present invention is a contaminated condition estimation method for an inner wall surface of a tank having stored radioactive contaminated water, and comprises a radiation dose measurement step of measuring a radiation dose using the survey meter while moving a probe of the survey meter inside the tank, and acquiring position information of the probe of the survey meter during measurement of the radiation dose; and a step of determining a contaminated condition for each height inside the tank based on a radiation dose measurement value and the position information obtained by the radiation dose measurement step. In the radiation dose measurement step, it is preferred that the probe of the survey meter is moved in a vertical direction, and that at least the probe of the survey meter is hung from the upper face opening of the tank, and the measurement is made discontinuously or continuously in the height direction inside the tank.SELECTED DRAWING: Figure 1 |
