Patent ID: 9338868
Filing Date: 2016-05-10
CPC Classification: H05G

Claim Text:
1. Radiographic equipment for detecting, by an x-ray detector, x-rays that have been emitted from an x-ray tube and that have passed through an examination subject, comprising: storage storing, as a filament current setting value, a filament current that is to be supplied to a filament of the x-ray tube under imaging conditions, from the imaging conditions of the tube current and tube voltage that are supplied to the x-ray tube at the time of radiographic imaging; a tube current value difference measuring device measuring over time, as a tube current value difference, a difference between an anticipated value for the tube current when x-ray emission is performed at a given filament current and a measured value for the tube current when x-ray emission is actually performed at that filament current; and a filament current setting value correcting device correcting the filament current setting value that has been stored in the storage so that the tube current value difference is reduced, when a calculation processing value from tube current value differences obtained by a plurality of x-ray exposure during a specific period exceeds a setting value that has been set in advance.