Radiation anode target systems and methods

Patent metadata

Field	Value
Publication number	US-11348755-B2
Application number	US-202017061233-A
Country	US
Kind code	B2
Filing date	Oct 1, 2020
Priority date	Jul 25, 2018
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

Presented systems and methods facilitate efficient and effective generation and delivery of radiation. A radiation generation system can comprise: a particle beam gun, a high energy dissipation anode target (HEDAT); and a liquid anode control component. In some embodiments, the particle beam gun generates an electron beam. The HEDAT includes a solid anode portion (HEDAT-SAP) and a liquid anode portion (HEDAT-LAP) that are configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat. The radiation beam can include photons that can have radiation characteristics (e.g., X-ray wavelength, ionizing capability, etc.). The liquid anode control component can control a liquid anode flow to the HEDAT. The HEDAT-SAP and HEDAT-LAP can cooperatively operate in radiation generation and their configuration can be selected based upon contribution of respective HEDAT-SAP and the HEDAT-LAP characteristics to radiation generation.

First claim

What is claimed:

1. A therapeutic radiation generation system comprising:
a particle beam gun that generates an electron beam;
a high energy dissipation anode target (HEDAT), configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat, wherein the (HEDAT) includes a plurality of channels; and
a liquid anode control component configured to control a flow of a liquid anode to the HEDAT.

2. The therapeutic radiation generation system of claim 1 , wherein the plurality of channels are configured to accommodate a plurality of liquid anode flows.

3. The therapeutic radiation generation system of claim 2 , wherein a first one of the plurality of channels is configured to accommodate a first liquid anode flow and a second one of the plurality of channels is configured to accommodate a second liquid anode flow.

4. The therapeutic radiation generation system of claim 2 , wherein the first liquid anode flow and the second liquid anode flow are different.

5. The therapeutic radiation generation system of claim 2 , wherein configuration of a first one of the plurality of channels is different than configuration of a second one of the plurality of channels.

6. The therapeutic radiation generation system of claim 2 , wherein first configuration of a wall in a first one of the plurality of channels is different than a second configuration of a wall in a second one of the plurality of channels.

7. The therapeutic radiation generation system of claim 6 , wherein a difference in the first configuration of the first one of the plurality of channels and the second configuration of the second one of the plurality of channels results in a difference of a first flow of a liquid anode in the first one of the plurality of channels and a second flow of a liquid anode.

8. The therapeutic radiation generation system of claim 2 , wherein a first configuration of the first one of the plurality of channels and a second configuration of the second one of the plurality of channels are coordinated for impacts on radiation emission from the HEDAT.

9. The therapeutic radiation generation system of claim 1 , wherein a first one of the plurality of channels includes a first liquid anode and a second one of the plurality of channels includes a second liquid anode, wherein the first liquid anode is different than the second liquid anode.

10. A radiation method comprising:
receiving an electron beam at a high energy dissipation anode target (HEDAT);
absorbing energy from collisions of the electron beam with a wall of a channel and collisions of the electron beam with liquid anode contents in a plurality of channels in the HEDAT;
generating radiation based upon the energy absorption; and
dissipating heat resulting from energy absorption.

11. The radiation method of claim 10 , further comprising:
controlling flow of a first liquid anode through a first one of the plurality of channels; and
controlling flow of a second liquid anode through a second one of the plurality of channels.

12. The radiation method of claim 10 , further comprising forwarding a radiation beam to a treatment target.

13. The radiation method of claim 12 , further comprising controlling liquid anode flows in the respective plurality of channels.

14. The radiation method of claim 13 , wherein controlling the liquid anode flows includes adjusting the liquid anode flows based on resulting impacts to characteristics of the radiation beam.

15. A radiation therapy system comprising:
a beam generation system that generates and transports a radiation beam in accordance with a prescribed treatment plan, where the beam generation system includes:
a particle beam gun that generates a particle beam;
a high energy dissipation anode target (HEDAT), configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat, wherein the (HEDAT) includes a channel configured to accommodate a liquid anode and a portion of a wall of the channel includes a solid anode; and
a liquid anode control component configured to control a flow of the liquid anode.

16. The radiation therapy system of claim 15 , wherein walls of the channel are configured to cause compress of the liquid anode in a manner that contributes to increased radiation emission.

17. The radiation therapy system of claim 15 , wherein walls of the channel are configured to maintain a flow pattern and reduce local recirculation eddies.

18. The radiation therapy system of claim 15 , wherein walls of the channel are configured to impact the flow of the liquid anode.

19. The radiation therapy system of claim 15 , wherein the channel includes a solid anode portion (HEDAT-SAP) and a liquid anode portion (HEDAT-LAP).

20. The radiation therapy system of claim 15 , wherein the HEDAT-SAP and HEDAT-LAP cooperatively operate to enhance energy compatibility characteristics of the HEDAT.

Assignees

• Varian Med Sys Inc

Inventors

• Star-Lack Josh
• Clayton James

Classifications

• H01J35/12

  Cooling non-rotary anodes · CPC title

• H01J35/112 Primary

  Non-rotating anodes (H01J35/12 takes precedence) · CPC title

• H01J35/18

  Windows · CPC title

• A61N5/10

  X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy (A61N5/01 takes precedence) · CPC title

• H01J2235/1204

  of the anode · CPC title