Flying spot formation device and design method theref
A design method and flying point technology, applied in the field of radiation imaging, can solve problems such as potential safety hazards, cracking of shields, and low scanning efficiency, and achieve the effects of improved scanning effects, improved hardware performance, and high scanning efficiency
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[0022] The technical solution of the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0023] According to the flying spot formation principle, the incident slot and the exit slot on the shield in the flying spot formation device correspond to each other. The corresponding relationship between the two can be described as: the size and arrangement of the entrance slot and the exit slot are such that During the rotation of the shielding body, at a certain moment, the three points of the radiation source, the incident point and the corresponding exit point are in a straight line. For example, refer to figure 2 In the middle left picture, at time t1, the three points of the radiation source focal point P, the incident point h and the corresponding exit point h'are in a straight line; after the shield is rotated 180° (at time t2), the radiation source focal point P, the incident point e and the corresponding exit Point e'th...
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