Slit-scanning radiography apparatus.

摘要

A radiography apparatus comprising a pivoting X-ray source (1) having a slit diaphragm (2) and a radiation-receiving means (5) whose position, during operation, corresponds to the position of the X-ray source. …The radiation-receiving means comprises an elongated X-ray detector (5) movable transversely to its longitudinal direction and having an elongated cathode (K) which in operation is irradiated by the X-ray source. The cathode converts the incident radiation to electrons which are moved by an electric field to an elongated anode (A). …By means of an initial exposure at reduced intensity of the X-ray source the settings are determined to perform the final exposure with an optimum X-ray dose.