Systems and methods for cooling X-ray tubes and detectors

Patent metadata

Field	Value
Publication number	US-9724059-B2
Application number	US-201514666401-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Oct 11, 2012
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

According to various aspects, exemplary embodiments are disclosed of systems that may be used for cooling objects, such as X-ray tubes and detectors, etc. Also disclosed are exemplary embodiments of methods for cooling objects, such as X-ray tubes and detectors, etc. For example, an exemplary embodiment includes a system that can be used to cool an X-ray tube and detector with one chiller. As another example, an exemplary embodiment of a method includes using one chiller to cool an X-ray tube and detector.

First claim

What is claimed is:

1. A method comprising:
cooling a coolant outside an operating environment of an X-ray tube and an X-ray image detector using an active or passive chiller;
circulating the coolant from the active or passive chiller towards the X-ray tube;
diverting a portion of the coolant to a direct to liquid (DL)thermoelectric assembly (TEA) situated on an X-ray image detector plate such that the diverted portion of the coolant passes through the DL TEA, whereby the DL TEA is used for actively cooling and controlling temperature of the X-ray image detector plate;
allowing at least a portion of the remaining undiverted coolant to flow to the X-ray tube for cooling of the X-ray tube; and
returning the coolant from the X-ray tube and the DL TEA back to the active or passive chiller.

2. The method of claim 1 , further comprising using the DL TEA to control temperature of the X-ray image detector plate directly on the X-ray image detector plate, whereby the X-ray image detector plate is both cooled and heated by the DL TEA by reversing polarity of one or more thermoelectric modules of the DL TEA.

3. The method of claim 1 , wherein cooling the coolant includes using a single chiller such that the same single chiller is used for cooling both the X-ray tube and the X-ray image detector plate.

4. The method of claim 1 , wherein the method includes:
cooling the coolant includes using a passive chiller, and using uninsulated hoses to circulate the coolant from the passive chiller to the X-ray tube and the DL TEA and back to the passive chiller; or
cooling the coolant includes using an active chiller, using insulated hoses to circulate the coolant from the active chiller to the X-ray tube and back to the active chiller, and using uninsulated hoses for the portion of the coolant diverted to the DL TEA.

5. A method comprising circulating a coolant from an active or passive chiller through a direct to liquid (DL) thermoelectric assembly (TEA) situated on an X-ray image detector plate such that the coolant passes through the DL TEA for actively cooling the X-ray image detector plate and for controlling temperature of the X-ray image detector plate, wherein:
circulating a coolant from the active or passive chiller through the DL TEA comprises diverting a portion of the coolant from the active or passive chiller to the DL TEA such that the diverted portion of the coolant passes through the DL TEA; and
the method further comprises circulating at least a portion of the remaining undiverted coolant from the active or passive chiller to flow to an X-ray tube for cooling of the X-ray tube.

6. The method of claim 5 , further comprising using the DL TEA to control temperature of the X-ray image detector plate directly on the X-ray image detector plate, whereby the X-ray image detector plate is both cooled and heated by the DL TEA by reversing polarity of one or more thermoelectric modules of the DL TEA.

7. The method of claim 5 , further comprising:
cooling the coolant includes using a passive chiller, and using uninsulated hoses to circulate the coolant from the passive chiller to the X-ray tube and the DL TEA and back to the passive chiller; or
cooling the coolant includes using an active chiller, using insulated hoses to circulate the at least a portion of the remaining undiverted coolant from the active chiller to the X-ray tube and back to the active chiller, and using uninsulated hoses to circulate the portion of the coolant diverted to the DL TEA.

8. The method of claim 5 , further comprising:
cooling the coolant outside an operating environment of the X-ray image detector plate using a single active or passive chiller; and
returning the coolant from the DL TEA back to the single active or passive chiller.

9. The method of claim 5 , wherein:
the active or passive chiller comprises a compressor-based recirculating system operable for controlling a temperature of the coolant in a liquid circuit; and
circulating a coolant from the active or passive chiller through the DL TEA comprise recirculating the coolant through the liquid circuit using a pump of the compressor-based recirculating system, such that heat is absorbed from the coolant and dissipated to the ambient environment.

10. A system comprising:
an active or passive chiller for cooling a coolant;
a direct to liquid (DL) thermoelectric assembly (TEA) situated on an X-ray image detector plate;
one or more conduits for circulating a coolant from the active or passive chiller to the DL TEA, whereby the coolant may pass through the DL TEA such that the DL TEA is usable for actively cooling and for controlling temperature of the X-ray image detector plate; and
one or more conduits for returning the coolant from the DL TEA back to the active or passive chiller;
wherein the system is configured to divert a portion of the coolant from the active or passive chiller to the DL TEA and to circulate at least a portion of the remaining undiverted coolant from the active or passive chiller to an X-ray tube for cooling of the X-ray tube.

11. The system of claim 10 , wherein the DL TEA comprises one or more thermoelectric modules that allow the X-ray image detector plate to be both cooled and heated by the DL TEA by reversing polarity of the one or more thermoelectric modules.

12. The system of claim 11 , wherein the DL TEA is usable to control temperature of the X-ray image detector plate directly on the X-ray image detector plate.

13. The system of 10 wherein
the system includes only one said active or passive chiller such that the same said active or passive chiller is usable for cooling both the X-ray tube and the X-ray image detector plate.

14. The system of claim 10 , wherein:
the active or passive chiller comprises a passive chiller and the one or more conduits comprise uninsulated hoses; or
the active or passive chiller comprises an active chiller, the one or more conduits comprise insulated hoses to circulate the at least a portion of the remaining undiverted coolant from the active chiller to the X-ray tube and back to the active chiller, and uninsulated hoses to circulate the portion of the coolant diverted to the DL TEA.

15. An X-ray system comprising an X-ray tube and an X-ray image detector plate cooled by the system of claim 10 , wherein the active or passive chiller is located outside an operating environment of the X-ray tube and the X-ray image detector plate.

16. The X-ray system of claim 15 , wherein the DL TEA comprises:
a bottom part situated on and /or in direct contact with the X-ray image detector plate; and
a top part having an inlet for receiving the coolant and a channel through which the coolant flows; and
one or more thermoelectric modules disposed generally between the top and bottom parts;
whereby temperature can be controlled directly on the X-ray image detector plate.

17. The X-ray system of claim 15 , wherein the DL TEA comprises:
an active heat sink situated on and /or in direct contact with the X-ray image detector plate;
a passive heat sink having an inlet for receiving the coolant and a channel through which the coolant flows; and
one or more thermoelectric modules disposed generally between the active and passive heat sinks;
whereby temperature can be controlled directly on the X-ray image detector plate, which can be both cooled and heated by reversing polarity of the one or more thermoelectric modules.

18. The system of claim 10 , wherein:
the active or passive chiller comprises a passive chiller; and the one or more conduits comprise first and s

Assignees

• Laird Technologies Inc

Inventors

• Karlstedt Dan Martin Gustav

Classifications

• H10W40/00

  Arrangements for thermal protection or thermal control (integrated devices comprising arrangements for thermal protection H10D89/60) · CPC title

• H10W40/47

  by flowing liquids, e.g. forced water cooling · CPC title

• H10W40/40

  involving heat exchange by flowing fluids · CPC title

• H05G1/025

  Means for cooling the X-ray tube or the generator · CPC title

• H01J7/26

  by flow of fluid through passages associated with tube or lamp · CPC title