jaundiced
发表于 2025-3-27 00:28:04
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占线
发表于 2025-3-27 03:34:38
Dosimetry, Radiation Hazards and Protective Measures,In diagnostic radiology one should be familiar with the radiation with which one works, the hazards connected with that radiation and with the measures that one can and must take in order to avoid these radiation hazards. Putting this knowledge into practice is summed up by the concept ..
Digest
发表于 2025-3-27 07:30:43
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孵卵器
发表于 2025-3-27 11:00:58
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Hemiplegia
发表于 2025-3-27 15:51:17
Perceptibility of Detail in the Radiographic Image; Image Quality,Before discussing the various methods of using X-rays for diagnostic purposes we shall first consider what is understood by detail perceptibility in the X-ray image, and the factors that determine this. A detail in a fluoroscopic image or radiograph (.) is the projection of a detail in the object (.).
peritonitis
发表于 2025-3-27 17:57:42
Fluoroscopy and Radiographic Technique in General,Both fluoroscopy and radiography are methods of investigation that have gained a permanent place in radiology.
Rheumatologist
发表于 2025-3-27 23:44:00
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小口啜饮
发表于 2025-3-28 04:20:18
Formation and Properties of X-rays,l with the speed of light. There are, however, no methods of bending or breaking them (as can be done with light), and, therefore, their direction cannot be altered. Concentration or deflection of X-rays with lenses or mirrors (as can be done with light) is therefore not possible.
ABYSS
发表于 2025-3-28 06:49:20
Special Radiographic Techniques,three alternatives, namely conventional fluoroscopy, fluoroscopy with image intensification and fluoroscopy with both image intensification and television, and these, in this order, represent the maximum, the realisation of which is above all a financial question and not a matter of principle.
Additive
发表于 2025-3-28 12:24:33
Diagnostic X-Ray Apparatus,(H.T.) generator (with built-in filament transformer) via a switching mechanism (varying from a simple clock-work timer to a complicated panel of switches), and connections of the generator poles (either with H.T. cables or without) to the anode and cathode of the X-ray tube.