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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 ...
The Coolidge Tube, first produced in 1913 by W. Coolidge, is the forerunner of all the types of x-ray tubes in common use today. The Coolidge tube was the first type of practical x-ray tube to employ the principle of thermionic emission. A tungsten filament is used as the tube cathode, and during operation is heated to incandescence by passing ...
Oct 19, 2024 · In 1916 Coolidge patented a revolutionary X-ray tube capable of producing highly predictable amounts of radiation. The Coolidge tube became the prototype of the modern X-ray tube. During World War I Coolidge worked on the construction of 1,000,000- and 2,000,000-volt X-ray machines for cancer treatment and also for industrial quality control.
- The Editors of Encyclopaedia Britannica
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 ...
Coolidge has been immortalized for his invention of a vacuum tube for generating X-rays (often still called the “Coolidge tube”). This device (patent #1,203,495, granted in 1913) made the use of X-rays for medical diagnosis safe and convenient: Coolidge even invented a portable model for use during World War I.
- Emily Mace
Coolidge has been immortalized for his invention of a vacuum tube for generating X-rays (often still called the "Coolidge tube"). This patent granted in 1913, made the use of X-rays for medical diagnosis safe and convenient.
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Jun 7, 2016 · Great improvements in X-ray tube stability, output and performance were obtained with the “hot cathode” or “Coolidge tube.” With some variation in filament and target geometry, this 100 year old invention is the same basic X-ray tube used today in medicine, research and industry.
