| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure safety during the use while an X-ray generator of a type using an ultraviolet laser can be incorporated in an endoscope and inserted into a living body. <P>SOLUTION: In an X-ray generating method for irradiating the ultraviolet laser beam receiving surface of an electron beam emitting element 103 with ultraviolet laser beams emitted from an ultraviolet laser generator, irradiating a metallic piece 104 with electron beams emitted from an electron beam emission surface which differs from the ultraviolet laser beam receiving surface in the electron beam emitting element, and generating X-rays from the metallic piece, the ultraviolet laser beams whose unit pulse strength is ≤1,000 μJ and unit pulse width is ≤100 ns are used to prevent alteration of a substance in the ultraviolet laser beam receiving surface. By grounding the electron beam emitting element, the generation of X-rays is stopped. <P>COPYRIGHT: (C)2012,JPO&INPIT |
