Patent ID: 8861682

Claim:
A multi-X-ray generator comprising: a plurality of electron emission elements; 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 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 to be output by irradiation with an electron beam emitted from each corresponding one of said plurality of electron emission elements; and a driving unit which applies a driving signal to the electron emission elements so as to control the amounts of electron emission of the electron emission elements individually, so that the X-ray generation from each of said plurality of X-ray generating regions can be individually controlled, and wherein the driving signal applied to each of the electron emission elements by said driving unit is applied after being corrected such as to reduce variations among the intensities of the X-rays with which an object is irradiated.