# US 10,768,321 B2 · X-ray detector cooling system and X-ray imaging system

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- Number: US 10,768,321 B2
- Document ID: US10768321B2
- Status: Granted
- Kind: B2
- Application number: 16/222,655
- Filed: 2018-12-17
- Published: 2019-06-20
- Granted: 2020-09-08
- Earliest claimed: 2017-12-15
- Assignees: General Electric Company
- Applicants: General Electric Company
- Inventors: Hailiang Liu; Min Zhou; Sen Wang; Yefu Li
- Web page: https://patentgrep.com/patent/US10768321B2

## CPC

- G01T 7/00: Details of radiation-measuring instruments
- A61B 6/4488: {Means for cooling (A61B6/045 takes precedence)}
- F25B 41/40: Fluid line arrangements
- F25D 19/006: {Thermal coupling structure or interface}
- G01T 1/2985: {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)}
- F25B 21/02: using Peltier effect; using Nernst-Ettinghausen effect
- G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)

## Abstract

Provided are a cooling system with no refrigeration machine for an X-ray detector, and an X-ray imaging system using the system. The cooling system for an X-ray detector comprises: a cooling pipeline positioned on an X-ray detector; and a coolant transfer pipeline positioned at least partially in a support device of the X-ray detector and connected with the cooling pipeline to form a circulation loop, the circulation loop being provided with a circulating coolant therein. On the basis of the existing X-ray photography system, the configuration of a refrigeration machine can be removed from the cooling system, and the cooling of the detector can be realized with as few changes as possible, while meeting the temperature requirements of the normal operation of the detector and reducing costs.

## Claims

### Claim 1

A cooling system for an X-ray detector, comprising:
a cooling pipeline positioned on an X-ray detector; and
a coolant transfer pipeline positioned at least partially in a support device of the X-ray detector and connected with the cooling pipeline to form a circulation loop, the circulation loop being provided with a circulating coolant therein; wherein the support device comprises a C-shaped arm, and wherein a first section of the coolant transfer pipeline is embedded into the C-shaped arm; and
a coolant replenishing device positioned in the circulation loop, wherein the coolant replenishing device comprises a first chamber and a second chamber, the first chamber is connected to the coolant transfer pipeline, and the second chamber is connected to the first chamber via a connection pipe, and wherein when the coolant replenishing device is tilted at a specific angle, the first chamber is full of the coolant, and the liquid level of the coolant in the second chamber is higher than the position of the connection pipe.

### Claim 2 (depends on 1)

The cooling system for an X-ray detector as claimed in claim 1, further comprising a pump for driving the coolant to circulate, and a coolant replenishing device positioned in the circulation loop.

### Claim 3 (depends on 1)

The cooling system for an X-ray detector as claimed in claim 1, wherein at least one surface of the C-shaped arm is provided with a groove, wherein the first section of the coolant transfer pipeline is embedded into the groove, and wherein a gap between the groove and the first section of the coolant transfer pipeline is filled with a highly thermally conductive material.

### Claim 4 (depends on 1)

The cooling system for an X-ray detector as claimed in claim 1, wherein the specific angle is not greater than the maximum rotation angle of the C-shaped arm.

### Claim 5 (depends on 1)

The cooling system for an X-ray detector as claimed in claim 1, wherein the support device comprises a support base, and wherein a second section of the coolant transfer pipeline is mounted in the support base.

### Claim 6 (depends on 5)

The cooling system for an X-ray detector as claimed in claim 5, further comprising a heat dissipation pipeline mounted on an inner wall of the support base, the heat dissipation pipeline being connected in series in the second section of the coolant transfer pipeline.

### Claim 7 (depends on 6)

The cooling system for an X-ray detector as claimed in claim 6, wherein the heat dissipation pipeline comprises a plurality of heat exchangers which are arranged in a matrix.

### Claim 8 (depends on 6)

The cooling system for an X-ray detector as claimed in claim 6, wherein the heat dissipation pipeline comprises a curved pipe.
