<P> An X-ray tube is a vacuum tube that converts electrical input power into X-rays . X-ray tubes evolved from experimental Crookes tubes with which X-rays were first discovered on November 8 , 1895 , by the German physicist Wilhelm Conrad Röntgen . The availability of this controllable source of X-rays created the field of radiography , the imaging of partly opaque objects with penetrating radiation . In contrast to other sources of ionizing radiation , X-rays are only produced as long as the X-ray tube is energized . X-ray tubes are also used in CT scanners , airport luggage scanners , X-ray crystallography , material and structure analysis , and for industrial inspection . </P>
<P> An X-ray tube is a vacuum tube that converts electrical input power into X-rays . X-ray tubes evolved from experimental Crookes tubes with which X-rays were first discovered on November 8 , 1895 , by the German physicist Wilhelm Conrad Röntgen . The availability of this controllable source of X-rays created the field of radiography , the imaging of partly opaque objects with penetrating radiation . In contrast to other sources of ionizing radiation , X-rays are only produced as long as the X-ray tube is energized . X-ray tubes are also used in CT scanners , airport luggage scanners , X-ray crystallography , material and structure analysis , and for industrial inspection . </P>
what kind of tube is used to produce x rays
what kind of tube is used to produce x rays
X-ray tube
X-ray tube