| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation measurement device configured to measure a direction along which a γ ray comes for displaying even a direction estimation error.SOLUTION: In the case of determining a direction by collating a plurality of discrete values obtained by using a plurality of detectors with response functions, a direction estimation error is calculated from a correlation value in the collation. As for each measurement unit, a direction along which a radiation comes and error amounts are calculated so that an image 102 for line source search can be constituted on the basis of them. Ranges &Dgr;&thetas;1 and &Dgr;&thetas;2 in an angle direction in the radial display images 110A and 112B are made equivalent to a direction estimation error. |
