METHOD FOR MANUFACTURING CATHODE MATERIAL FOR FLASHING DISCHARGE TUBE, CATHODE MATERIAL FOR FLASHING DISCHARGE TUBE, AND ELECTRODE FOR FLASHING DISCHARGE TUBE USING IT

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a cathode material for a flashing discharge tube, easy to manufacture even with a discharge tube thinned down and an electrode downsized.;SOLUTION: The cathode material for a flashing discharge tube is made by impregnating holes of a porous sintered body produced with the use of metal powder for a sintered material made of high-melting-point metal such as tantalum and niobium with electron emission matters such as a cesium compound. The metal powder for the sintered body is molded into a pellet shape, which is sintered and cut, and is impregnated with electron emission matters, in the method for manufacturing the cathode material for the flashing discharge tube.;COPYRIGHT: (C)2010,JPO&INPIT