Detector unit, X-ray computer tomographic photographing device, X-ray detector, and X-ray detector manufacturing method

A detector unit for detecting X rays which have passed through a collimator having a plurality of collimator single plates, comprising:

• a scintillator configured to convert the X rays into light;
• a photodetecting device array configured to detect the light produced from the scintillator;
• a substrate holding the photodetecting device array mounted thereon and attached to a collimator support configured to support the collimator single plates, the substrate having a back surface and a side surface on one of which markings are formed;
• and
• the markings indicating height positions as measured in a slicing direction along a height of the substrate and the markings being determined with one of the photodetecting device array and the scintillator block as a reference.

An X-ray computer tomographic photographing device for obtaining a tomographic image of a specimen, comprising:

• an X-ray source configured to irradiate the specimen with X rays;
• and
• an X-ray detector disposed on a side opposite to that of the X-ray source, with the specimen being located therebetween, said X-ray detector including,
• a plurality of collimator single plates arranged radially, with the X-ray source as a center,
• a collimator module comprising an incident side support and an emission side support,
• the incident side support being provided with insertion grooves in which the collimator single plates are inserted,
• the emission side support being provided with insertion grooves in which the collimator single plates are inserted,
• the insertion grooves of the emission side support having a pitch different from that of the insertion grooves of the incident side support such that the X-ray source is located at a position on imaginary extensions of the collimator single plates, and
• a detector unit configured to detect X rays which have passed through gaps defined between the collimator single plates.

An X-ray computer tomographic photographing device for obtaining a tomographic image of a specimen, comprising:

• an X-ray source configured to irradiate the specimen with X rays;
• and
• an X-ray detector disposed on a side opposite to that of the X-ray source, with the specimen being located therebetween, said X-ray detector including,
• a plurality of collimator single plates arranged radially, with the X-ray source as a center,
• a collimator support provided with insertion grooves in which the collimator single plates are inserted,
• the insertion grooves being formed to extend in a traveling direction of the X rays such that the X-ray source is located at a position on imaginary extensions of the collimator single plates;
• and
• a detector unit configured to detect X rays which have passed through gaps defined between the collimator single plates.

An X-ray computer tomographic photographing device for obtaining a tomographic image of a specimen, comprising:

• an X-ray source configured to irradiate the specimen with X rays;
• and
• an X-ray detector disposed on a side opposite to that of the X-ray source, with the specimen being located therebetween, said X-ray detector including,
• a pair of collimator supports which face each other in a slicing direction along a distance between the collimator supports and which extend in a channel direction receiving said X rays,
• one of the collimator supports being provided with a plurality of round holes formed at a predetermined pitch and arranged in the channel direction,
• another one of the collimator supports being provided with a plurality of elongated holes elongated in the slicing direction, formed at the predetermined pitch, and arranged in the channel direction,
• a plurality of collimator single plates located between the collimator supports and juxtaposed in the channel direction, and
• a detector unit configured to detect X rays which have passed through gaps between the collimator single plates, the detector unit being provided with positioning pins fitted in the round holes and positioning pins inserted in the elongated holes.

An X-ray computer tomographic photographing device for obtaining a tomographic image of a specimen, comprising:

• an X-ray source configured to irradiate the specimen with X rays;
• and
• an X-ray detector disposed on a side opposite to that of the X-ray source, with the specimen being located therebetween, said X-ray detector including,
• a pair of collimator supports which face each other in a slicing direction along a distance between the collimator supports and which extend in a channel direction receiving said X rays,
• one of the collimator supports being provided with a plurality of round holes formed at a predetermined pitch and arranged in the channel direction,
• another one of the collimator supports being provided with a plurality of elongated grooves which are formed in a side surface thereof, elongated in the slicing direction, formed at the predetermined pitch, and arranged in the channel direction,
• a plurality of collimator single plates located between the collimator supports and juxtaposed in the channel direction, and
• a detector unit configured to detect X rays which have passed through gaps between the collimator single plates, the detector unit being provided with positioning pins fitted in the round holes and positioning pins inserted in the elongated grooves.