| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electron beam irradiating method in which the local temperature rise of an idle target can be prevented advantageously and furthermore, deformation of the idle target and occurrence of metal vapor can be avoided. <P>SOLUTION: When a separately prepared idle target is irradiated with electron beams for a period until the output of the electron beams are stabilized or for a period until the outside of a metal strip is irradiated with the electron beams in the method that the metal strip is irradiated with the electron beam, a beam irradiation diameter on the idle target surface when the idle target is irradiated with the electron beams is made at least 1.2 times the beam irradiation diameter on the metal strip surface when the metal strip is irradiated with the electron beams. <P>COPYRIGHT: (C)2013,JPO&INPIT |
