Radiographic device

Patent metadata

Field	Value
Publication number	US-12153173-B2
Application number	US-202017778552-A
Country	US
Kind code	B2
Filing date	Oct 6, 2020
Priority date	Oct 6, 2020
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

An object is to improve the reliability of output information by simplifying a wiring route. A radiation image sensor includes a radiation detector in which a plurality of pixels of a charge generator for generating a charge corresponding to energy or the number of particles of incident radiation and a plurality of read circuits for outputting a digital value based on the charge generated by each pixel of the charge generator are mutually stacked and two-dimensionally disposed, and a circuit board on which a plurality of radiation detectors is disposed, in which the plurality of read circuits of one radiation detector is configured to transfer data indicating a digital value in the plurality of read circuits and then output the data to another adjacent radiation detector in response to a control signal from the outside.

First claim

The invention claimed is:

1. A radiation imaging device comprising:
a radiation detector in which a plurality of charge generation units configured to generate a charge corresponding to energy or the number of particles of incident radiation and a plurality of reading units configured to output a digital value based on the charge generated by each of the plurality of charge generation units are mutually stacked and two-dimensionally disposed; and
a circuit board on which a plurality of radiation detectors is disposed,
wherein the plurality of reading units are configured to transfer digital data to another adjacent radiation detector in response to a control signal from an outside source,
wherein each of the plurality of reading units is associated with a respective charge generation unit of the plurality of charge generation units, and is configured to output a digital value based on charge generated by said associated charge generation unit,
wherein the charge generation units are pixels,
wherein the plurality of reading units are configured to sequentially transfer the digital value to another adjacent reading unit in response to a control signal from an outside source, and
wherein the plurality of reading units are configured to transfer the digital value via all reading units included in the one radiation detector.

2. The radiation imaging device according to claim 1 , wherein at least one of the reading units being an outermost unit in the radiation detector among the plurality of reading units is configured to output the data transferred from another adjacent reading unit to the circuit board in response to the control signal.

3. The radiation imaging device according to claim 2 , wherein at least one of the reading units being an outermost unit in the radiation detector among the plurality of reading units of the radiation detector is configured to store or transfer the data output from the reading units being an outermost unit of another radiation detector adjacent to the radiation detector.

4. The radiation imaging device according to claim 2 , further comprising
another circuit board in which the plurality of reading units is formed,
wherein at least one of the reading units being an outermost unit outputs the data to the circuit board via a through electrode penetrating the another circuit board.

5. The radiation imaging device according to claim 3 , further comprising
another circuit board in which the plurality of reading units is formed,
wherein the data is input to at least one of the reading units being an outermost unit via the circuit board and a through electrode penetrating the another circuit board.

6. The radiation imaging device according to claim 1 , wherein each of the plurality of reading units includes:
a signal converter configured to convert an analog signal based on the charge into the data indicating the digital value, and
a memory configured to store the data indicating the digital value output by the signal converter.

7. A radiation imaging device comprising:
a radiation detector in which a plurality of charge generation units configured to generate a charge corresponding to energy or the number of particles of incident radiation and a plurality of reading units configured to output a digital value based on the charge generated by each of the plurality of charge generation units are mutually stacked and two-dimensionally disposed; and
a circuit board on which a plurality of radiation detectors is disposed,
wherein the plurality of reading units are configured to transfer digital data to another adjacent radiation detector in response to a control signal from an outside source,
wherein each of the plurality of reading units is associated with a respective charge generation unit of the plurality of charge generation units, and is configured to output a digital value based on charge generated by said associated charge generation units,
wherein the charge generation units are pixels,
wherein the plurality of reading units included in one radiation detector are divided into a plurality of regions, and one data input and one data output are included for each of the plurality of regions, and
wherein the plurality of reading units included in one of the regions are configured to sequentially transfer the digital value to another adjacent reading unit in response to a control signal from an outside source, and transfer the digital value via all the reading units included in one of the regions, and then output the digital data to an adjacent radiation detector from the one data output.

8. The radiation imaging device according to claim 7 , wherein at least one of the reading units being an outermost unit in the radiation detector among the plurality of reading units is configured to output the data transferred from another adjacent reading unit to the circuit board in response to the control signal.

9. The radiation imaging device according to claim 8 , wherein at least one of the reading units being an outermost unit in the radiation detector among the plurality of reading units of the radiation detector is configured to store or transfer the data output from the reading units being an outermost unit of another radiation detector adjacent to the radiation detector.

10. The radiation imaging device according to claim 8 , further comprising
another circuit board in which the plurality of reading units is formed,
wherein at least one of the reading units being an outermost unit outputs the data to the circuit board via a through electrode penetrating the another circuit board.

11. The radiation imaging device according to claim 9 , further comprising
another circuit board in which the plurality of reading units is formed,
wherein the data is input to at least one of the reading units being an outermost unit via the circuit board and a through electrode penetrating the another circuit board.

12. The radiation imaging device according to claim 7 , wherein each of the plurality of reading units includes:
a signal converter configured to convert an analog signal based on the charge into the data indicating the digital value, and
a memory configured to store the data indicating the digital value output by the signal converter.

13. A radiation imaging device comprising:
a radiation detector in which a plurality of charge generation units configured to generate a charge corresponding to energy or the number of particles of incident radiation and a plurality of reading units configured to output a digital value based on the charge generated by each of the plurality of charge generation units are mutually stacked and two-dimensionally disposed; and
a circuit board on which a plurality of radiation detectors is disposed,
wherein the plurality of reading units are configured to transfer digital data to another adjacent radiation detector in response to a control signal from an outside source,
wherein each of the plurality of reading units is associated with a respective charge generation unit of the plurality of charge generation units, and is configured to output a digital value based on charge generated by said associated charge generation units,
wherein the charge generation units are pixels,
wherein the plurality of reading units are configured to sequentially transfer the digital value to another adjacent reading unit in response to a control signal from an outside source,
wherein an outermost reading unit of the plurality of reading units is configured to output the digital data to another adjacent radiation detector in response to a control signal from an outside source,
wherein the plurality of ra

Assignees

• Univ Shizuoka Nat Univ Corp
• Anseen Inc

Inventors

• Aoki Toru
• Takagi Katsuyuki
• KOIKE Akifumi

Classifications

• G01T1/2018

  Scintillation-photodiode combinations · CPC title

• G01T1/247 Primary

  Detector read-out circuitry (for processing gain or off-set correction H04N) · CPC title

• G01T1/208

  Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section · CPC title

• G01T1/24 Primary

  with semiconductor detectors · CPC title

• G01T1/17 Primary

  Circuit arrangements not adapted to a particular type of detector {(pulse-selection circuits H03K, G01R)} · CPC title