November 8, 1985, for Professor R?ntgen, this is a day that is memorable in his life, and will always be memorable in the field of science. This day, Professor R?ntgen a laboratory in the Institute of Physics, conducted an  improved cathode ray tube test, in the process of the test, he found the distance from the tube less than a meter above the small workbench, shot a green fluorescence, after he cut off the power supply, the photoelectric tube extinguished at the same time, that the magic of the green light disappeared, and then finally figured out the source of the green light is the cardboard above the plating with the cyanine sub The source of the green light is the crystal material of barium cyanurate platinum plated on top of the cardboard, and the magical green light is also sent out through it.

After many attempts and tests, Prof. R?ntgen will be hard rubber, wood, glass and other objects to do the ray of obstacles, found that this magical ray is able to pass smoothly, and even their own fingers in the passage of this ray at the same time, are able to show the shadow to. Later, Prof. R?ntgen took his wife as a test subject, and her hand also showed a bone image under the irradiation of the ray, so Prof. R?ntgen named this ray as X-ray. For the discovery of X-rays, Roentgen was awarded the Nobel Prize in Physics in 1901. He was the first scientist to win the Nobel Prize in Physics. The name X-rays has been used to this day to honor and respect Professor R?ntgen.

Left: Wilhelm R?ntgen (1845~1923)

Right: The world's first X-ray photograph —— an X-ray of Mrs. Roentgen's finger.

The discovery of X-rays unveiled the revolution of modern physics and pushed the development of physics itself. Nowadays, with the rapid development of science and technology, X-rays have been widely used in various industries such as medical treatment, fluoroscopy, metal detecting and crystal structure research, etc. It can be said that X-rays have brought great benefits to mankind!