On November 8, 1896 Wilhelm Conrad Rontgen German physicist. The start of the study and research of X-rays while experimenting with vacuum tubes. In the experiments of Rontgen was created by using a cathode ray tube glass vacuum. He was found to have a green light to run against the pipe wall, he found that the light from the built cathode ray this through various materials (such as paper, wood, books), he was the object of several other categories in front of this machine. And he has found He can shoot the outline of the bones of his hand on the wall. Two months later, he began conducting research. And has been proven and published in 1896 in a report entitled On a New Kind of Radiation, which is mentioned in this report, which stated that the x-ray radiation has not specified categories. (So named before the radiation x), the name X-rays were used to popular than the name that scientists give it. Roentgen rays from (Rontgen rays) and the Rontgen won the Nobel physics from the discovery and proof of this phenomenon.