Flexible digital detector array

Patent metadata

Field	Value
Publication number	US-12352709-B2
Application number	US-202318098353-A
Country	US
Kind code	B2
Filing date	Jan 18, 2023
Priority date	Mar 1, 2022
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

A flexible digital detector array apparatus including a control system including a block control module, a gate control module, and at least one data module. The block control module and the gate control module can be arranged to execute a multiplexing operation. The apparatus can also include a flexible substrate coupled to the control system at an edge of the flexible substrate via a plurality of connectors. The flexible substrate can include a switching area including a plurality of switching pixels arranged within a plurality of blocks. Each switching pixel can be communicatively coupled to the block control module and the gate control module. The apparatus can also include a sensing area including an array of sensing pixels. The array of sensing pixels can generate image data responsive to X-rays incident thereon and provide the image data to the plurality of data modules. Each switching pixel of the plurality of switching pixels can be arranged to control a read state of a portion of sensing pixels.

First claim

What is claimed is:

1. An apparatus comprising:
a control system including a block control module including block control circuitry, a gate control module including gate control circuitry, and at least one data module including data circuitry, wherein the block control module and the gate control module are configured to execute a multiplexing operation; and
a flexible substrate coupled to the control system at an edge of the flexible substrate via a plurality of connectors, the flexible substrate including
a switching area including a plurality of switching pixels arranged within a plurality of blocks, each switching pixel communicatively coupled to the block control module via the block control circuitry and to the gate control module via the gate control circuitry; and
a sensing area including an array of sensing pixels, the array of sensing pixels configured to generate image data responsive to X-rays incident thereon and provide the image data to the at least one data module via the data circuitry, wherein each switching pixel of the plurality of switching pixels controls a read state of a portion of the array of sensing pixels.

2. The apparatus of claim 1 , wherein the block control module is configured to provide a first block control signal to a first block including a first plurality of switching pixels to power on the first block and a second block control signal to blocks other than the first block to power off the blocks other than the first block.

3. The apparatus of claim 2 , wherein, the gate control module is configured to provide a first gate control signal to a second plurality of switching pixels, and a second gate control signal to all switching pixels outside of the second plurality of switching pixels, wherein each switching pixel in the second plurality of switching pixels is in a different block of the switching area and the first gate control signal causes a first switching pixel in the second plurality of switching pixels in the first block to activate, causing a first portion of sensing pixels of the sensing area to transition from a non-read state to a read state.

4. The apparatus of claim 3 , wherein image data generated by the first portion of sensing pixels associated with the first switching pixel is provided to the at least one data module via the data circuitry responsive to transitioning to the read state.

5. The apparatus of claim 3 , wherein the first block control signal and the first gate control signal include a first predetermined voltage, and the second block control signal and the second gate control signal include a second predetermined voltage.

6. The apparatus of claim 1 , wherein the flexible substrate includes a coating enclosing the data module, the gate module, and the block control module.

7. The apparatus of claim 1 , wherein
each sensing pixel of the array of sensing pixels includes at least one photodiode, and at least one sensing thin-film transistor (TFT);
each switching pixel of the plurality of switching pixels includes at least one gate TFT and at least one gate capacitor;
the block control module includes a first gate integrated circuit (GIC);
the gate control module includes a second gate integrated circuit (GIC); and
the at least one data module includes at least one read-out integrated circuit (ROIC).

8. The apparatus of claim 7 , wherein each sensing pixel of the array of sensing pixels further includes at least one sensing pixel capacitor, and the apparatus further comprises:
a film laminated to the flexible substrate forming a scintillator.

9. The apparatus of claim 8 , wherein the film includes a gadolinium oxysulfide film or a cesium iodide film.

10. The apparatus of claim 1 , wherein the block control module and the gate control module each include 32, 64, 128, 256, 512 or 1024 ports connecting the block control module and the gate control module to the plurality of blocks or the plurality of switching pixels, respectively.

11. The apparatus of claim 1 , wherein the sensing pixels of the sensing area have a first dimension between 25 mm-250 mm associated with width and a second dimension between 100 mm-600 mm associated with length.

12. A method comprising:
configuring a flexible x-ray digital detector array (DDA) with respect to an object to be inspected, the flexible DDA including a bus, a control system including a block control module including block control circuitry, a gate control module including gate control circuitry, and at least one data modules including data circuitry, wherein the block control module and the gate control module are configured to execute a multiplexing operation, and a flexible substrate coupled to the control system at one edge of the flexible substrate via a plurality of connectors, the flexible substrate including a switching area including a plurality of switching pixels arranged within a plurality of blocks, each switching pixel communicatively coupled to the block control module via the block control circuitry and to the gate control module via the gate control circuitry, and a sensing area including an array of sensing pixels, the array of sensing pixels configured to generate image data responsive to X-rays incident thereon and provide the image data to the at least one data module via the data circuitry, wherein each switching pixel of the plurality of switching pixels controls a read state of a portion of sensing pixels;
scanning the object using an X-ray emitting device;
acquiring, by a computing system including at least one processor communicatively coupled to the flexible DDA, image data characterizing the scanned object.

13. The method of claim 12 , wherein the acquiring further comprises:
providing a first block control signal to a first block including a first plurality of switching pixels to power on the first block, and providing a second block control signal to the blocks other than the first block via the block circuitry;
providing a first gate control signal to a second plurality of switching pixels and providing a second gate control signal to all switching pixels outside of the second plurality of switching pixels, wherein each switching pixel in the second plurality is in a different block and the first gate control signal causes a first switching pixel in the second plurality of switching pixels and in the first block to activate, causing a first portion of sensing pixels of the sensing area to transition from a non-read state to a read state;
receiving, by the at least one processor, image data characterizing the scanned object from the first portion of sensing pixels from the at least one data module via a communication module coupled to the bus;
providing a second block control signal to the first block via the block circuitry causing the first switching pixel to deactivate causing the first portion of sensing pixels of the sensing area to transition from the read state to the non-read state.

14. The method of claim 13 , wherein the acquiring further comprises:
providing the second gate control signal to the second plurality of switching pixels;
providing the first block control signal to the first block and providing the second block control signal to the blocks other than the first block via the block circuitry;
providing the first gate control signal to a third plurality of switching pixels and providing the second gate control signal to all switching pixels outside of the third plurality of switching pixels, wherein each switching pixel in the third plurality is in a different block and the first gate control signal causes a second switching pixel in the third plurality of switching pixels and

Assignees

• Baker Hughes Holdings Llc

Inventors

• An Kwang Hyup
• Wissels Steven

Classifications

• G01N2223/628

  tubes, pipes · CPC title

• G01N2223/501

  array · CPC title

• G01N23/083

  the radiation being X-rays · CPC title

• H04N25/30

  for transforming X-rays into image signals · CPC title

• G01N2223/646

  flaws, defects · CPC title