DETECTOR SYSTEM AND RADIATION IMAGING DEVICE

• US 20200132865A1
• Filed: 12/24/2019
• Published: 04/30/2020
• Est. Priority Date: 12/24/2018
• Status: Abandoned Application

• Current Assignee: Nuctech Company Limited (Tsinghua Tongfang Co., Ltd.), Tsinghua University
• Original Assignee: Nuctech Company Limited (Tsinghua Tongfang Co., Ltd.), Tsinghua University
• Inventors: TIAN, Yang, LI, Yulan
• Application Number:
  US16/726,274
• Publication Number:
  US 20200132865A1
• Time in Patent Office: Days
• CPC Class Codes: G01T 1/2014 Reading out of stimulable sheets, e.g. latent image
• CPC Class Codes: G01T 1/20181 Stacked detectors, e.g. for measuring energy and positional information using a combination of different types of scintillation detectors, e.g. phoswich detectors, G01T1/2008
• CPC Class Codes: G01T 1/242 Stacked detectors, e.g. for depth information constructional or manufacturing details H01L25/00
• CPC Class Codes: H04N 5/32 Transforming X-rays cameras or camera modules for generating image signals from X-rays H04N23/30; circuitry of SSIS for transforming X-rays into image signals H04N25/30

Abstract

The present disclosure provides a detector system and a radiation imaging device. The detector system comprises: a detector, including a plurality of detector layers that are overlapped, and the detector layer comprises a detector element layer and at least one of the detector layers is movable along the thickness direction of the detector layers; a distance adjusting device drivingly connected with at least one of the detector layers to adjust the inter-layer distance between adjacent detector layers of the detector by moving at least one of the detector layers along the thickness of the detector layers. The radiation imaging device comprises the detector system described above. The detector system and the radiation imaging device of the present disclosure are conductive to realizing an omnidirectional and efficient detection effect with high angular resolution.

Claims

1. A detector system, comprising:

a detector, comprising a plurality of detector layers that are overlapped, wherein each one of the plurality of detector layers comprises a detector element layer, and at least one of detector layers is movable along a thickness direction of the plurality of detector layers; and

a distance adjusting device which is drivingly connected with the at least one of the plurality of detector layers, to adjust an inter-layer distance between adjacent detector layers of the detector by moving the at least one of the plurality of detector layers along a thickness of the plurality of detector layers.

2. The detector system according to claim 1, wherein the detector element layer comprises a scintillator detecting element layer, and the plurality of detector layer comprises a photoelectric conversion element connected with the scintillator detecting element layer and an integrated circuit chip connected with the photoelectric conversion element.

3. The detector system according to claim 1, wherein the detector comprises three or more detector layers.

4. The detector system according to claim 1, wherein the detector element layer comprises a scintillator detecting element layer, and the scintillator detecting element layer comprises a plurality of scintillator bars arranged closely side by side in a direction perpendicular to the thickness of the plurality of detector layers.

5. The detector system according to claim 4, wherein sides other than a first and second end in a length direction of the plurality of scintillator bars are provided with reflective layers.

6. The detector system according to claim 4, wherein sides other than a first and second end in a length direction of the plurality of scintillator bars are provided with light shield layers.

7. The detector system according to claim 4, wherein a detector layer comprises silicon photomultipliers, and both ends of each scintillator bar are respectively provided with one said silicon photomultiplier.

8. The detector system according to claim 7, wherein the detector layer further comprises an integrated circuit chip connected with the silicon photomultipliers of the detector layer in which the integrated circuit chip is located.

9. The detector system according to claim 1, wherein the detector system comprises a power supply device and a data acquisition device which are connected with the detector.

10. The detector system according to claim 1, wherein the distance adjusting device comprises an inter-layer connecting mechanism connected with each of the plurality of detector layers, and the inter-layer connecting mechanism defines the same inter-layer distances between each two adjacent detector layers when the distance adjusting device adjusts the inter-layer distance.

11. The detector system according to claim 10, wherein the inter-layer connecting mechanism comprises a rod telescopic structure formed by a plurality of hinged connecting rods, and each detector layer is hinged with the rod telescopic structure.

12. The detector system according to claim 1, wherein the distance adjusting device comprises a guiding mechanism for guiding movement of the at least one of the plurality of detector layers.

13. The detector system according to claim 1, wherein the distance adjusting device further comprises a driving mechanism which is drivingly connected with at least one detector layer of the plurality of detector layers to move the at least one of plurality of detector layers along the thickness direction of the plurality of detector layers to adjust the inter-layer distance.

14. The detector system according to claim 1, wherein the detector system comprises a detector bracket, and the plurality of detector layers and the distance adjusting device are arranged on the detector bracket.

15. A radiation imaging device comprises:

the detector system according to claim 1.