Электронная библиотека технического вуза
§ 31.1. X-RAY TUBE STRUCTURE. BREMSSTRAHLUNG X-RAYS
The most common source of X-ray is an X-ray tube, which is a two-electrode vacuum device (fig. 31.1). Heating cathode 1 emits electrons 4. Anode 2, often called anti-cathode, has an inclined surface in order to direct resulting X-ray radiation 3 at an angle to the horizontal axis of the tube. The anode is made from a good conductive material to remove the heat generated by electron impact. The anode surface is made from refractory materials with a large atomic number in the Mendeleev? periodic table, for example, tungsten. In certain cases, the anode is intentionally cooled with water or oil.