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William Crookes - Invents a Crookes Tube
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1895, Wilhelm Conrad Röntgen - Discovers the X-rays
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First use of X-rays under clinical conditions was by John Hall-Edwards in Birmingham
Great Lives from History: Inventors & Inventions John Hall-Edwards in Birmingham, England, radiographed a needle stuck in the hand of an associate. -
John Ambrose Flemingohn Ambrose Fleming invented the thermionic diode, the first kind of a vacuum tube.
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John Hall-Edwards had to have his left arm amputated owing to the spread of X-ray dermatitis
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Coolidge tubes, completely replaced the troublesome cold cathode tubes by about 1920
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Paul Kirkpatrick invented the first X-ray microscope
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Godfrey N. Hounsfield invented the first CT Scan
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The Chandra X-ray Observatory was launched allowing X-ray space exploration