| 摘要 |
PURPOSE:To enable stable discharge even on the increase in the amount of discharge current, and to enable laser output of high output and high efficiency by a method wherein the discharge electrodes of the titled device are formed out of the sintered alloy of two kinds of more of hetero metals of different oxidizing inclination. CONSTITUTION:The discharge electrodes consist of a Cu anode 1, cathode 2, tungsten particles 3, an oxide film 3a made of tungsten particles 3, Cu particles 4, and an oxide film 4a made of Cu particles 4. The oxide film 3a made of tungsten particles 3 and the oxide film 4a made of the Cu particles 4 are much different in the amount of electron release through these oxide films 3a and 4a, and so most of electrons (-e) are released out of the oxide film 4a made of Cu particles 4 corresponding to the mesh of the oxide film 3a made of tung sten particles 3. Therefore, the local concentration of current density is dispersed by the oxide film 3a of made of tungsten particles 3, and it is made possible to keep glow discharge even when the amount of discharge current is increased; accordingly, laser output of high output and high efficiency can be obtained. |
