| 摘要 |
PROBLEM TO BE SOLVED: To obtain an RI imaging apparatus which can correct the omission of, a scintillation image due to the partition of a collimator during a measurement. SOLUTION: In a radioisotope (RI) imaging apparatus, a detecting means by which a radiation from a radioisotope injected into a sample is detected and which outputs its detecting position is provided, a counting means which counts the number of detections of the radiation in every detecting position is provided, and a collimator which is arranged on the side of the incident face of the detecting means and which limits the incident direction of the radiation on the detecting means is provided. As a result, the number of detections counted by the counting means is displayed as the distribution image of the radiation. In this case, the counting means is provided with a detecting-position conversion means by which the detecting position of the detected radiation in the opening part of the collimator is converted into a detecting position in the partition part of the collimator.
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