| 摘要 |
Apparatus are disclosed to scan an elongate portion of the patient. The apparatus have a low power x-ray source and imaging assembly, each having a collimating slit through which an x-ray beam is transmitted. Means are provided to move the patient relative to the x-ray source. A film pack is located in the imaging assembly and is mounted on a motor carrier to move the film pack progressively past the slit axis so as to record the image obtained. The low power x-ray beam is offset by a high speed film and an image intensifier in the imaging assembly, thereby reducing the amount of radiation subjected on the patient.
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