Patent ID: 8139716
Filing Date: 2012-03-20
Classification: H01J

Abstract:
1. A multi-X-ray generator comprising: a container whose interior space is evacuated; a plurality of electron emission elements arranged within said container; a target which is placed opposite said plurality of electron emission elements; a backward X-ray shielding unit placed on a side of the target, which faces said plurality of electron emission elements; and a forward X-ray shielding unit having a single plate and placed on the other side of said target, which is at an opposite side of said plurality of electron emission elements, wherein said target comprises a plurality of X-ray generating regions provided in correspondence with said plurality of electron emission elements, and each of said plurality of X-ray generating regions generates an X-ray beam to be output by irradiating an electron beam emitted from a corresponding one of said plurality of electron emission elements, wherein said backward X-ray shielding unit has a plurality of electron incident holes provided in correspondence with the plurality of X-ray generating regions, which allows the electron beam to get through, wherein said forward X-ray shielding unit has a plurality of apertures in correspondence with the plurality of X-ray generating regions, through which the X-ray beams are output, and wherein said plurality of apertures are each arranged on said single plate of said forward X-ray shielding unit.