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Film radiographic systems designed to perform the most common (basic) radiographic procedures (e.g., chest, abdomen, orthopedic examinations) using minimum resources. These systems typically include a battery-powered, 25kW x-ray generator with a tube tension of 90 and 120 kV; limited exposure factors; a control panel that indicates electrical supply status before exposure and the chosen kV and mA values, and an integral protective screen; an x-ray tube with a maximum 1 mm focal spot that can handle at least 20 kW for 0.1 second and 10 kW for 1.0 second; a rotating anode and a collimator that matches beam size to film formats; an x-ray tube support and a cassette holder that firmly connects to the x-ray tube; and a rigid, x-ray-permeable patient support table with a 110 kg capacity. These systems may be designed for the most common examinations (those not requiring fluoroscopy, tomography, or serial film changers) of the skeleton (e.g., fractures), head (e.g., trauma, infection), chest (e.g., tuberculosis, tumors), abdomen (e.g., intestinal obstruction, trauma), and soft tissue. Basic radiographic systems are intended for use in small rural hospitals, large health centers and polyclinics, private medical practices, and as supplemental equipment in large hospitals.
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