Detector apparatus with detachable evaluation unit

Patent metadata

Field	Value
Publication number	US-10185040-B2
Application number	US-201715459426-A
Country	US
Kind code	B2
Filing date	Mar 15, 2017
Priority date	Mar 17, 2016
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A detector apparatus includes a scattered radiation grid; a scintillator unit for converting X-rays into a light quantity; an evaluation unit for converting the light quantity into electric signals; and a module-receiving appliance. The scintillator unit and the scattered radiation grid are mechanically connected to the module-receiving appliance via a first connection and the evaluation unit is mechanically connected to the module-receiving appliance via a second connection, independent of the first connection. The evaluation unit, the scintillator unit and the scattered radiation grid are aligned with respect to one another such that light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit.

First claim

What is claimed is:

1. A detector apparatus, comprising:
a scattered radiation grid;
a scintillator unit configured to convert X-rays into a light quantity;
an evaluation unit configured to convert the light quantity into electric signals; and
a module-receiving appliance,
the scintillator unit and the scattered radiation grid being mechanically connected to a first surface of the module-receiving appliance via a first connection,
the evaluation unit being mechanically connected to the first surface of the module-receiving appliance via a second connection, independent of the first connection, and
the evaluation unit, the scintillator unit and the scattered radiation grid being aligned with respect to one another such that the light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit,
wherein the first connection and the second connection are configured to be detachable, and
wherein the scintillator unit and the evaluation unit define a gap therebetween.

2. The detector apparatus of claim 1 , wherein the scintillator unit forms a detection unit with the scattered radiation grid.

3. The detector apparatus of claim 1 , further comprising:
a detection unit, the detection unit and the evaluation unit having different two-dimensional extensions.

4. The detector apparatus of claim 1 , further comprising:
a detection unit assigned to a plurality of evaluation units.

5. The detector apparatus of claim 1 , wherein one sub-region of the sub-regions of the scintillator unit is assigned to a cell of the scattered radiation grid.

6. The detector apparatus of claim 5 , wherein the one sub-region of the sub-regions of the scintillator unit and the cell of the scattered radiation grid have the same two-dimensional extension.

7. The detector apparatus of claim 5 , wherein the one sub-region of the sub-regions of the scintillator unit is formed in a grid opening of the scattered radiation grid.

8. The detector apparatus of claim 5 , wherein the one sub-region of the sub-regions of the scintillator unit comprises a plurality of needle-shaped scintillator elements.

9. A medical device, comprising:
the detector apparatus of claim 5 .

10. The medical device of claim 9 , wherein the medical device is a computed tomography scanner.

11. The detector apparatus of claim 1 , wherein the defined gap is filled with a fluid.

12. The detector apparatus of claim 1 , wherein the defined gap is filled with an optical filler.

13. A medical device, comprising:
the detector apparatus of claim 1 .

14. The medical device of claim 13 , wherein the medical device is a computed tomography scanner.

15. The detector apparatus of claim 1 , wherein the scintillator unit forms a detection unit with the scattered radiation grid.

16. The detector apparatus of claim 1 , wherein the detection unit and the evaluation unit have different two-dimensional extensions.

17. The detector apparatus of claim 1 , wherein the detection unit is assigned to a plurality of evaluation units.

18. The detector apparatus of claim 1 , wherein one sub-region of the sub-regions of the scintillator unit is assigned to a cell of the scattered radiation grid.

Assignees

• Siemens Healthcare Gmbh

Inventors

• Wirth Stefan

Classifications

• G01T1/2985

  In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis); (using external radiation sources A61B6/02) · CPC title

• G01T1/2018

  Scintillation-photodiode combinations · CPC title

• A61B6/035

  Mechanical aspects of CT · CPC title

• A61B6/4291

  the detector being combined with a grid or grating · CPC title

• G01T1/2006 Primary

  using a combination of a scintillator and photodetector which measures the means radiation intensity · CPC title