| 摘要 |
This invention relates to the field of nuclear technology application. The detection system uses a detector including a high-specific-activity isotopic gamma ray source and its shielded container, a chamber for radiating, collimators and a detector array, a signal processing system and a carrying mechanism for translation etc. In addition, the detection system uses a rotary scanner framework of ring-type and its seat. The detector is mounted on the framework. The invention can improve the sensitivity and accuracy of the system significantly by obtaining projective images from any designated direction and cross-sectional images of designated position whilst using only one set of ray sources, detector and signal processing system. |
