X-ray tubes developed from experimental Crookes tubes with which X-rays ended up first found on November 8, 1895, because of the German physicist Wilhelm Conrad Röntgen. The first-generation cold cathode or Crookes X-ray tubes have been applied until the 1920s. These tubes perform by ionisation of residual gasoline in the https://tungstentubes10986.affiliatblogger.com/80589076/everything-about-tungsten-tubes