48cm = 480mm
480mm/20sec = 每秒掃24mm
但題目說一圈只要0.5秒 故 24/2 = 每0.5秒掃12mm
Pitch = Table Feed(轉一圈床前進多少) / beam width = 12mm / 8mm = 1.5
23.若螺旋式CT(spiral CT)掃描時z軸的涵蓋長度為48 cm,掃描時..-阿摩線上測驗