Radiographic apparatus that removes time lag by recursive...

Details Radiographic apparatus that removes time lag by recursive... Radiographic apparatus that removes time lag by recursive...

2008-05-27

2008-05-27

Ho, Allen C. (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

C378S019000, C378S098800, C250S370090

Reexamination Certificate

active

07377691

ABSTRACT:
A radiographic apparatus obtains lag-free radiation detection signals with lag-behind parts removed from radiation detection signals taken from a flat panel X-ray detector as X rays are emitted from an X-ray tube. The lag-behind parts are removed by a recursive computation on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of exponential functions, N in number, with different attenuation time constants. X-ray images are created from the lag-free radiation detection signals.

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