| 摘要 |
PROBLEM TO BE SOLVED: To prevent or alleviate sensitivity unevenness in a rotation direction when a radiation image as a panoramic image is formed.SOLUTION: A plurality of detection value arrays 70, 72, 74 are acquired by rotating a gamma camera continuously or intermittently. After certain pre-processing is performed for them, each detection value is granted to corresponding coordinates in the entire field of vision. Then, cumulative addition processing is applied at the time of granting. A counting rate can be obtained by dividing a cumulative addition value for each coordinate by a detection time. Based on a two-dimensional counting rate distribution thus obtained, a panoramic radiation image is formed.SELECTED DRAWING: Figure 10 |
