抄録
A thermionic electric power generation is one of the direct energy converter technologies. Although the thermionic energy converter has many advantages, it is not practically used yet. The thermionic energy converter generally works at high emitter temperature and high operating temperature might cause the shortening of emitter's life and the problem of stability. To slove these problems the laser light is irradiated to the thermionic energy converter at lower emitter temperature. A dye laser was used to study the output characteristics of the thermionic converter irradiated by the light. As a result of the experiment, it is found that the output current of the irradiated thermionic converter increases at the relatively lower emitter temperature at about 618nm and 630nm wavelength of the light. This result will be effective, when the sunlight is used both for a light source and a heat source.
