Ge Medical Systems Global Technology Company, LLC

Ge Medical Systems Global Technology, LLC

Masaya Kumazaki

Akihiko Nishide

Mitsuru Yahata

Masatake Nukui

Yasuhiro Imai

Haruo Kurochi

Kentaro Ogata

Takuji Sawaya

The present invention provides a detector which suppress the crosstalk between detector cells while improving the acquisition efficiency of X-ray radiation. The detector includes a plurality of detector cells, arranged along a detection plane of X-ray, in which each detector cell has a scintillator unit made of a scintillator, and a photodiode for transduce the light incoming from the scintillator unit into electric signals. The scintillator units are partitioned each from another by the border, which has a groove extending in the channel and row directions. A scintillator is provided in some part of the border in the incident X-ray direction.

X-ray radiation detector, X-ray imaging apparatus, X-ray CT apparatus and method of manufacturing X-ray detector

With the object of realizing an X-ray CT apparatus which performs a plurality of pieces of imaging small in resolution degradation too simultaneously while suppressing an expansion of a data acquisition section that receives an electric signal of an X-ray detector, such an array that X-ray detectors in a channel direction are operated with the two as one pair is made by first detector switching means of a switching unit. This array moved by one X-ray detector in the channel direction is alternately repeated in the row or channel direction. Therefore, even when the number of receivers is small, data extending over a wide imaging range can simultaneously be collected while the degradation of resolution is being suppressed to a minor degree. By extension, imaging more coincident with an operator-aimed image can be done by making the switching use of imaging in high resolution.

X-ray CT apparatus

For the purpose of determining an offset of the position of an X-ray tube from a prespecified position, and correcting axially projected data Dand pixel projection data Dbased on the determined offset, proper axially projected data Dcan be obtained by an X-ray focal spotand a detectorby determining axially projected data Dat a pointusing projection data Dobtained by a channel that detects an X-ray emitted from the X-ray focal spotand passing through the pointand shifting the determined axially projected data Dby a distance DISin the (+)-direction of the x-axis.

X-ray CT apparatus and method of controlling it

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Tokyo, Japan

Masaya Kumazaki