| 摘要 |
PURPOSE:To improve the cooling efficiency of an anode body by providing multiple lugs on a heat transfer surface on the operating liquid side. CONSTITUTION:An electron beam emitted from a cathode enters an anode body 1, part of it is radiated outside as X-ray energy, but most of it is absorbed by the anode as a heat loss. The heat generated in the anode body 1 is transferred to an operating liquid 6 through the heat transfer surface 12 of a metal lump 2. Multiple rectangular pyramidal projections 13 are provided on the heat transfer surface of the metal lump 2. Accordingly, the boiling of the operating liquid 6 first occurs at the base 14 of the projection 13 and the film formation gradually proceeds to the tip 16 of the projection 13, thereby the cooling efficiency can be improved as compared with the case of a flat heat transfer surface. |
