HOOKING METHOD OF HOT CATHODE SUBSTRATE

摘要

PURPOSE:To accurately, precisely, and simply hook a hot cathode by hooking its substrate on the inner frame of the hooking member which is formed in a body. CONSTITUTION:The hot cathode substrate 1 engages with the hooking member 2 and is accurately and precisely fixed to the radiation shielding 3 by this hooking member 2. The radiation shielding 3 is jointed with the metallic sleeve 7 for fixing an electron gun with the ceramic member 6. The metallic rod 5 for retaining the holder 7 at the heater legs of the substrate 1 is embedded in the ceramic member 6.