File:Basic mechanical principles of present-day fluoroscopes.jpg
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English: Basic mechanical principles of present-day fluoroscopes. 1, x-ray tube heavily shielded to contain unwanted radiation, at the same time permitting useful beam to emerge by way of a small window fitted with filters of aluminum to reduce the effect of radiation on patient's skin; 2, heavy sheet-lead shutters to modify size of x-ray beam; 3, transparent lead impregnated glass to protect observer against excessive exposure; 4, rigid arm to which both tube and screen are attached. Counterbalanced and fitted with ball-bearing rollers, entire assembly is freely movable, side to side and up and down, on supporting framework. Fluoroscopes are built in vertical, horizontal and tilting types. |
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Radiology for medical students (1958) Internet Archive identifier: hodges_radiologyformedicalstudents_1958 |
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| Author | Hodges, Fred Jenner, 1895- | |||
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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 18:04, 18 February 2021 | | 1,201 × 882 (419 KB) | Balkanique (talk | contribs) | File:Basic mechanical principles of present-day fluoroscopes and Basic mechanical principles of radiographic apparatus.jpg cropped 25 % horizontally, 63 % vertically using CropTool with lossless mode. |
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