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An X-ray generator generally contains an X-ray tube to produce the X-rays. Possibly, radioisotopes can also be used to generate X-rays. [1]An X-ray tube is a simple vacuum tube that contains a cathode, which directs a stream of electrons into a vacuum, and an anode, which collects the electrons and is made of tungsten to evacuate the heat generated by the collision.
Caldwell was president of the American Roentgen Ray Society (ARRS) in 1907, invented the first portable X-ray machine for use at a patient's bedside, and devised a positioning technique known as Caldwell's view that allowed for X-ray visualization of the sinuses.
He also developed a portable x-ray machine. [ 7 ] [ 14 ] [ 18 ] He also developed an early prototype of a snowmobile. It was a "snow machine" that attached skis to the undercarriage of an airplane fuselage and attached a propeller, and a sound track synchroniser (later selling the patent to RCA).
In 1999, Time placed Shoe-Store X Rays on a list of the 100 worst ideas of the 20th century. [29] [30] A shoe-fitting fluoroscope appeared on a 2011 episode of the History series American Restoration. [31] Its radionuclide source was found to be so dangerous that it was removed and replaced with a static X-ray. [32]
William David Coolidge (/ ˈ k uː l ɪ dʒ /; October 23, 1873 – February 3, 1975) [1] was an American physicist and engineer, who made major contributions to X-ray machines. He was the director of the General Electric Research Laboratory and a vice-president of the corporation.
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object.Applications of radiography include medical ("diagnostic" radiography and "therapeutic radiography") and industrial radiography.
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A portable aSi flat-panel detector is used to visualise the movement of liquids in sand cores under high pressure. Flat-panel detectors are a class of solid-state x-ray digital radiography devices similar in principle to the image sensors used in digital photography and video.