Movable/replaceable high intensity target and multiple accelerator systems and methods

Patent metadata

Field	Value
Publication number	US-12337194-B2
Application number	US-202117404907-A
Country	US
Kind code	B2
Filing date	Aug 17, 2021
Priority date	Aug 17, 2021
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

A radiation system includes a patient station including a plurality of accelerator systems and a microwave generation system configured to generate microwaves for the plurality of accelerators. The plurality of accelerators are configured to provide substantially simultaneous multiple radiation beams from the plurality of accelerators. The microwave generation system includes a plurality of radio frequency (RF) sources, each RF source being configured to generate separate microwave signals for corresponding respective ones of the plurality of accelerator systems, and a plurality of modulators, each modulator being configured to modulate generation of the separate microwave signals by the respective ones of the plurality of RF sources. The respective ones of the plurality of RF sources and plurality of modulators are included in a respective plurality of RF chains, each RF chain including a respective circulator and dose rate servo.

First claim

The invention claimed is:

1. A radiation system comprising:
a patient station, wherein the patient station includes a plurality of accelerator systems, wherein the plurality of accelerator systems is configured to provide simultaneous multiple radiation beams from the plurality of accelerator systems; and
a microwave generation system configured to generate microwaves for the plurality of accelerator systems, the microwave generation system including a plurality of radio frequency (RF) chains, each RF chain of the plurality of RF chains including an RF source of a plurality of RF sources, each RF source of the plurality of RF sources being configured to generate microwave signals and each accelerator system of the plurality of accelerator systems being operated independently by a respective RF chain of the plurality of RF chains.

2. The radiation system of claim 1 , wherein the microwave generation system further comprises:
a plurality of modulators, each modulator of the plurality of modulators being configured to modulate generation of microwave signals of a single RF source of the plurality of RF sources.

3. The radiation system of claim 2 , wherein each of the RF chains further includes
a modulator of the plurality of modulators, a circulator, and a dose rate servo.

4. The radiation system of claim 1 , wherein the plurality of accelerator systems are configured to transmit multiple radiation beams from different orientations.

5. The radiation system of claim 1 , wherein respective ones of the plurality of accelerator systems include:
a particle source configured to generate charged particles;
an acceleration portion configured to accelerate the charged particles; and
a high intensity target configured to generate Bremsstrahlung radiation in response to impact by the charged particles.

6. The radiation system of claim 1 , wherein the plurality of accelerator systems are mounted on a gantry.

7. The radiation system of claim 6 , wherein the gantry is rotatable so that individual accelerator systems in the plurality of accelerator systems provide radiation from different angles as the gantry rotates.

8. The radiation system of claim 1 , wherein the plurality of accelerator systems are mounted on a plurality of robotic arms respectively.

9. The radiation system of claim 8 , wherein the plurality of robotic arms operate independently and move so that individual accelerators in the plurality of accelerator systems provide radiation from different angles.

10. The radiation system of claim 1 , wherein operation of the plurality of accelerator systems is coordinated with a medical treatment plan.

11. A radiation system comprising:
a first patient station, wherein the first patient station includes a first plurality of accelerator systems, wherein the first plurality of accelerator systems are configured to provide simultaneous multiple radiation beams from the first plurality of accelerator systems;
a second patient station, wherein the second patient station includes a second plurality of accelerator systems, wherein the second plurality of accelerator systems are configured to provide simultaneous multiple radiation beams from the second plurality of accelerator systems; and
a microwave generation system configured to provide microwave signals to the first plurality of accelerator systems and the second plurality of accelerator systems, the microwave generation system including a plurality of radio frequency (RF) chains, each RF chain including an RF source of a plurality of RF sources, each RF source of the plurality of RF sources being configured to generate microwave signals and each accelerator system of the first plurality of accelerator systems and the second plurality of accelerator systems being operated independently by a respective RF chain of the plurality of RF chains.

12. The radiation system of claim 11 , wherein the microwave generation system further comprises:
a plurality of modulators, each modulator of the plurality of modulators being configured to modulate generation of microwave signals of a single RF source of the plurality of RF sources.

13. The radiation system of claim 12 further comprising a plurality of waveguides, each waveguide of the plurality of waveguides being configured to convey microwave signals from an RF source of the plurality of RF sources to a respective accelerator system of the first plurality of accelerator systems and the second plurality of accelerator systems.

14. The radiation system of claim 12 , wherein the first patient station and the second patient station are in different radiation delivery rooms.

15. The radiation system of claim 12 , wherein the first patient station and the second patient station are controlled by a central control station.

16. The radiation system of claim 12 , wherein the first patient station and the second patient station are configured to share a first subset of components included in the microwave generation system and are configured with respective dedicated second subsets of components included in the microwave generation system.

17. A radiation system comprising:
a first patient station, wherein the first patient station includes a first accelerator system, wherein the first accelerator system is configured to provide radiation beams;
a second patient station, wherein the second patient station includes a second accelerator system, wherein the second accelerator system is configured to provide radiation beams;
a radio frequency (RF) source configured to generate microwave signals for the first accelerator system and the second accelerator system;
a modulator configured to modulate generation of the microwave signals by the RF source; and
a plurality of RF chains, each RF chain of the plurality of RF chains including a waveguide, each of the first accelerator system and the second accelerator system configured to receive microwave signals from the RF source via the waveguide of an individual RF chain of the plurality of RF chains.

18. The radiation system of claim 17 , wherein the first patient station and the second patient station are in different radiation delivery rooms.

19. The radiation system of claim 17 , wherein the first patient station and the second patient station are in a same radiation delivery room.

Assignees

• Varian Med Sys Inc

Inventors

• Poehlmann-Martins Flavio
• Main William Thompson
• Shojaei Amir

Classifications

• H05H2007/027

  Microwave systems · CPC title

• H05H7/02

  Circuits or systems for supplying or feeding radio-frequency energy · CPC title

• A61N2005/1087

  Ions; Protons · CPC title

• A61N5/1084

  for delivering multiple intersecting beams at the same time, e.g. gamma knives · CPC title

• A61N5/1083

  Robot arm beam systems · CPC title