X-ray detecting apparatus and method of operating the same

• US 10,307,117 B2
• Filed: 04/29/2016
• Issued: 06/04/2019
• Est. Priority Date: 01/26/2016
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Sung-kyu, Jang, Dae-yeong, Hong, Key-jo, Kim, Hee-cheol, Cho, Jeong-geun
• Primary Examiner(s): Kao, Chih-Cheng
• Application Number:
  US15/142,702
• Publication Number:
  US 20170209107A1
• Time in Patent Office: 1,131 Days
• CPC Class Codes: A61B 6/03 Computed tomography [CT] echo-tomography A61B8/14
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/4208 characterised by using a particular type of detector
• CPC Class Codes: A61B 6/4266 characterised by using a plurality of detector units A61B6/4014 takes precedence
• CPC Class Codes: A61B 6/54 Control of apparatus or devices for radiation diagnosis
• CPC Class Codes: A61B 6/56 Details of data transmission or power supply, e.g. use of slip rings
• CPC Class Codes: G01T 1/244 Auxiliary details, e.g. casings, cooling, damping or insulation against damage by, e.g. heat, pressure or the like

Abstract

Provided are an X-ray detecting apparatus which is capable of controlling an electric power supplied to an X-ray detector module while an X-ray tomography scanning is being performed, and a method for operating the X-ray detecting apparatus. The X-ray detecting apparatus includes an X-ray detector module which has a heat dissipation structure.

Claims

1. An X-ray detecting apparatus comprising at least one X-ray detector module configured to detect an X-ray irradiated from an X-ray generator toward an object in order to obtain X-ray data relating to the object,

wherein the at least one X-ray detector module comprises:

a body that includes a metal material;

a photodetector disposed at a side of the body and configured to receive the X-ray irradiated from the X-ray generator and to convert an X-ray signal into an electric signal;

a first circuit board disposed on a first surface of the body, the first surface of the body having an orientation that is orthogonal to the side of the body at which the photodetector is disposed;

a first analog/digital converter (ADC) chip mounted on an upper surface of the first circuit board and configured to convert the electric signal into a digital signal; and

a thermal pad interposed between the first surface of the body and an upper surface of the first ADC chip,

wherein an upper surface of the first circuit board is further disposed to face the first surface of the body.

2. The X-ray detecting apparatus of claim 1, wherein the at least one X-ray detector module further comprises:

a second circuit board disposed on a second surface of the body, wherein the second surface is opposite to the first surface;

a second ADC chip mounted on an upper surface of the second circuit board; and

a thermal pad interposed between the second surface of the body and the second ADC chip.

3. The X-ray detecting apparatus of claim 1, wherein the photodetector comprises:

a scintillator configured to receive the X-ray irradiated from the X-ray generator, and to discharge the received X-ray as photons of a visible frequency band; and

a photodiode configured to convert the photons into an analog electric signal,

wherein the photodiode is disposed at a side of the body and the scintillator is disposed on an upper surface of the photodiode.

4. The X-ray detecting apparatus of claim 3, wherein the at least one X-ray detector module further comprises a plurality of X-ray detector modules which are arranged in an array, and the X-ray detecting apparatus further comprises a module connection frame configured for connecting the plurality of X-ray detector modules to each other.

5. The X-ray detecting apparatus of claim 4, wherein the body comprises a first coupling joint that extends from the side of the body, at which the photodetector is disposed, so as to protrude in a first direction, and a second coupling joint that extends from the side of the body so as to protrude in a second direction that is opposite to the first direction, and

the module connection frame comprises a first frame coupled to the first coupling joint and a second frame coupled to the second coupling joint.

6. The X-ray detecting apparatus of claim 4, wherein the plurality of X-ray detector modules are installed in a gantry that is configured to rotate, and wherein each of the plurality of X-ray detector modules is disposed to face the X-ray generator that is installed in the gantry.

7. An X-ray detecting apparatus comprising:

at least one X-ray detector module configured to detect an X-ray irradiated from an X-ray generator toward an object, and to convert the detected X-ray into an electric signal based on a photograph protocol which relates to obtaining X-ray data about the object;

a power supply configured to supply electric power to the at least one X-ray detector module;

a memory configured to store a setting parameter value that comprises an offset value of the at least one X-ray detector module; and

a controller configured to receive a signal for starting an X-ray tomography scan with respect to the at least one X-ray detector module, and to control the power supply to automatically supply the electric power to the at least one X-ray detector module, to turn the at least one X-ray detector module on when an X-ray tomography scan starts based on the received signal and to terminate the supplying of the electric power to the at least one X-ray detector module, and to shut off electric power to the at least one X-ray detector module when the X-ray tomography scan is determined to be completed based on information included in the obtained X-ray data,

wherein the controller is further configured to receive the setting parameter value from the memory and perform an offset calibration based on the offset value comprised in the received setting parameter value after supplying the electric power to the at least one X-ray detector module.

8. The X-ray detecting apparatus of claim 7, wherein the controller is further configured to control the power supply to terminate a supplying of the electric power to the at least one X-ray detector module, without having received the signal for starting the X-ray tomography scan.

9. The X-ray detecting apparatus of claim 7, wherein the controller is further configured to recognize at least one change in an external environment of the at least one X-ray detector module, and to control the power supply to supply electric power to the at least one X-ray detector module or to terminate a supplying of the electric power to the at least one X-ray detector module based on the recognized at least one change in the external environment of the at least one X-ray detector module.

10. The X-ray detecting apparatus of claim 7, wherein the at least one X-ray detector module is further configured to acquire an X-ray raw data image of the object, and the controller is further configured to determine that the X-ray tomography scan is completed by analyzing header information included in the X-ray raw data image and to control the power supply to terminate the supplying of the electric power to the at least one X-ray detector module based on the determination.

11. The X-ray detecting apparatus of claim 7, wherein the setting parameter value further comprises information that relates to a feedback capacitor included in the at least one X-ray detector module.

12. The X-ray detecting apparatus of claim 11, wherein the at least one X-ray detector module further comprises a detector module controller configured for correcting, based on the stored setting parameter value, at least one from among an offset value of the at least one X-ray detector module and a feedback capacitor value.

13. The X-ray detecting apparatus of claim 12, wherein the detector module controller is further configured to receive the setting parameter value from the storage when an X-ray tomography scan starts based on a reception of a signal for starting the X-ray tomography scan.

14. A method for operating an X-ray detecting apparatus comprising at least one X-ray detector module configured to detect an X-ray irradiated from an X-ray generator toward an object and to obtain X-ray data that relates to the object, the method comprising:

receiving a signal for starting an X-ray tomography scan;

in response to the received signal, automatically supplying electric power to the at least one X-ray detector module and turning the at least one X-ray detector module on;

receiving a setting parameter value that comprises an offset value of the at least one X-ray detector module;

performing an offset calibration based on the offset value comprised in the received setting parameter value;

detecting an X-ray irradiated toward the object based on a photograph protocol that relates to obtaining X-ray data of the object; and

terminating the supplying of the electric power to the at least one X-ray detector module and shutting off electric power to the at least one X-ray detector module when the X-ray tomography scan is determined to be completed based on information included in the obtained X-ray data.

15. The method of claim 14, further comprising terminating the supplying of the electric power to the at least one X-ray detector module, before receiving the signal for starting the X-ray tomography scan.

16. The method of claim 14, wherein the receiving the signal for starting the X-ray tomography scan comprises:

recognizing at least one change in an external environment of the at least one X-ray detector module; and

determining whether to initiate or terminate a supplying of the electric power to the at least one X-ray detector module based on the recognized at least change in the external environment.

17. The method of claim 14, wherein the obtaining the X-ray data comprises obtaining X-ray raw data that relates to the object, and

the terminating the supplying of the electric power to the at least one X-ray detector module comprises:

determining that the X-ray tomography scan is completed by analyzing header information that relates to the X-ray raw data; and

terminating the supplying of the electric power to the at least one X-ray detector module based on a result of the determining.

18. The method of claim 14, wherein the received setting parameter value comprises information that relates to at least one from among an offset calibration of the at least one X-ray detector module and a feedback capacitor included in the at least one X-ray detector module, and wherein the method further comprises correcting at least one from among an offset value of the at least one X-ray detector module and a feedback capacitor value, based on the received setting parameter value.