| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radiation detection system and nuclear medicine diagnostic device improving position resolution and collection sensitivity, by arranging a radiation semiconductor detector with concave shape against a specimen close to the heart and collecting corresponding to 90 degree cardiac muscle SPECT. SOLUTION: Two concave shape radiation semiconductor detectors 38 and 39 are arranged with a contact angleθ2 of 60 degrees, for example, in the constitution. The width of the radiation semiconductor detectors 38 and 39 is set to approximately 60 cm and the bending (the distance between the recess and projection) is set to approximately 13 cm. The radiation semiconductor detectors 38 and 39 are moved so that the view filed centers 63a and 64a in the effective view field (the effective view field ends are 63b, 63c, 64b and 64c) fit a specimen center PO, and according to the needs, the radiation semiconductor detectors 38 and 39 are moved for specific distances S1 and S2 (approximately 10 cm).</p> |
