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William D. Coolidge. William David Coolidge (/ ˈkuːlɪdʒ /; 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. He was also famous for the development of ...
Oct 19, 2024 · Quick Facts. William D. Coolidge (born October 23, 1873, Hudson, Massachusetts, U.S.—died February 3, 1975, Schenectady, New York) was an American engineer and physical chemist whose improvement of tungsten filaments was essential in the development of the modern incandescent lamp bulb and the X-ray tube. After teaching at the Massachusetts ...
- The Editors of Encyclopaedia Britannica
Jun 7, 2016 · Circa 1910, the state-of-the-art X-ray tube was a “gas tube” or “cold cathode” type tube. These crude X-ray tubes relied on residual gas molecules as a source of electrons for bombardment of low to medium atomic number metal targets. In 1912 Coolidge described the use of tungsten as an improved anode target material for X-ray tubes.
- D. Allard
- 2016
Coolidge continued to expand the usefulness of X-rays by the development of million-volt, high-power generators for medical therapeutic work and multiple industrial uses. The year 1932 was an important year for the laboratory, for Coolidge became director upon the retirement of Whitney, and in the same year Langmuir became the first American industrial scientist to win the Nobel Prize.
- Emily Mace
Information about Coolidge X-Ray Tubes. Without a doubt, the single most important event in the progress of radiology was the invention by William Coolidge in 1913 of what came to be known as the Coolidge X-ray tube. Nevertheless, d espite its clear superiority, the Coolidge tube did not immediately replace cold cathode tubes—the latter ...
Dr Coolidge's “A Powerful Roentgen X-Ray Tube With a Pure Electronic Discharge” appeared in the December 1913 Physical Review, with a second version appearing in the January 1914 American Journal of Roentgenology. Dr Cole's first article about his experience was published in the December 1913 issue of the American Journal of Roentgenology.
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Mar 8, 2016 · Tungsten lamps are still made essentially the same way Coolidge made them 70 years ago. Coolidge's second major invention, the X-ray tube, is also essentially the same today as it was then. Coolidge had been fascinated by William Roentgen's discovery of X-rays in 1895 and had experimented with them on his own. Thus, it was a natural step from ...
