Automatic tuning of dressed multicell cavities using pressurized balloons

Patent metadata

Field	Value
Publication number	US-10645793-B2
Application number	US-201916664843-A
Country	US
Kind code	B2
Filing date	Oct 26, 2019
Priority date	Sep 25, 2018
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

A method and system for automatically tuning hollow structures, can include pressurized balloons located in one or more targeted cells of a hollow structure of a device having a hollow structures and respective cells. A pressurized balloon can be inserted into a targeted cell so as to localize plastic deformation to the targeted cell using prescribed values of global force and balloon pressure. A pair of inflate/deflate rods associated with an independent air supply for the pressurized balloon can inflate or deflate the pressurized balloon without affecting other pressurized balloons. The pair of inflate/deflate rods can be automatically insertable or removable from the hollow structure by controlled motorized motions.

First claim

What is claimed is:

1. A system for automatically tuning hollow structures, the system comprising:
a plurality of pressurized balloons located in at least one targeted cell of a hollow structure of a device having a plurality of hollow structures and a plurality of respective cells, wherein at least one pressurized balloon among the plurality of pressurized balloons is inserted into the at least one targeted cell so as to localize plastic deformation to the at least one targeted cell using prescribed values of global force and balloon pressure with respect to the at least one pressurized balloon; and
a pair of inflate/deflate rods associated with an independent air supply for the at least one pressurized balloon, wherein the pair of inflate/deflate rods inflates or deflates the at least one pressurized balloon without affecting other pressurized balloons among the plurality of pressurized balloons, wherein the pair of inflate/deflate rods is automatically insertable or removable from the hollow structure by controlled motorized motions.

2. The system of claim 1 further comprising an automatic bead insertion/removal telescope mechanism that inserts into or removes a bead from the hollow structure.

3. The system of claim 1 wherein the at least one pressurized balloon is subject to automatic coarse tuning operations.

4. The system of claim 1 wherein the at least one pressurized balloon is subject to automatic fine-tuning operations.

5. The system of claim 1 wherein the device comprises an SRF (Superconducting Radio Frequency) cavity for use in a particle accelerator.

6. The system of claim 5 wherein the pair of inflate/deflate rods carry the at least one pressurized balloon, wherein the pair of inflate/deflate rods is automatically inserted or removed from the SRF cavity by controlled motorized motions at least one rail.

7. The system of claim 1 wherein the at least one pressurized balloon comprises a rubberized/nylon balloon.

8. The system of claim 1 wherein the hollow structure comprises a cavity.

9. The system of claim 8 wherein the cavity comprises at least one of: a multicell elliptical cavity among a plurality of adjacent cavities, a dressed multicell cavity among a plurality of adjacent cavities.

10. system of claim 1 wherein the hollow structure comprises a filter.

11. The system of claim 1 wherein the at least one pressurized balloon is subject to at least one of: automatic fine-tuning operations and automatic coarse tuning operations.

12. A system for automatically tuning hollow structures, the system comprising:
a plurality of pressurized balloons located in at least one targeted cell of a hollow structure of a device having a plurality of hollow structures and a plurality of respective cells, wherein at least one pressurized balloon among the plurality of pressurized balloons is inserted into the at least one targeted cell so as to localize plastic deformation to the at least one targeted cell using prescribed values of global force and balloon pressure with respect to the at least one pressurized balloon;
a pair of inflate/deflate rods associated with an independent air supply for the at least one pressurized balloon, wherein the pair of inflate/deflate rods inflates or deflates the at least one pressurized balloon without affecting other pressurized balloons among the plurality of pressurized balloons, wherein the pair of inflate/deflate rods is automatically insertable or removable from the hollow structure by controlled motorized motions; and
an automatic bead insertion mechanism that inserts a bead into the hollow structure.

13. A method for automatically tuning hollow structures, comprising:
locating a plurality of pressurized balloons in at least one targeted cell of a hollow structure of a device having a plurality of hollow structures and a plurality of respective cells;
inserting at least one pressurized balloon among the plurality of pressurized balloons into the at least one targeted cell so as to localize plastic deformation to the at least one targeted cell using prescribed values of global force and balloon pressure with respect to the at least one pressurized balloon;
associating a pair of inflate/deflate rods with an independent air supply for the at least one pressurized balloon; and
inflating or deflating the at least one pressurized balloon with the pair of inflate/deflate rods without affecting other pressurized balloons among the plurality of pressurized balloons, wherein the pair of inflate/deflate rods is automatically insertable or removable from the hollow structure by controlled motorized motions.

14. The method of claim 13 further comprising inserting into or removing a bead from the hollow structure with an automatic bead insertion/removal telescope mechanism that inserts into or removes the bead from the hollow structure.

15. The method of claim 13 further comprising subjecting the at least one pressurized balloon to automatic coarse tuning operations.

16. The method of claim 13 further comprising subjecting the at least one pressurized balloon to automatic fine-tuning operations.

17. The method of claim 13 wherein the device comprises an SRF (Superconducting Radio Frequency) cavity for use in a particle accelerator.

18. The method of claim 17 wherein the pair of inflate/deflate rods carry the at least one pressurized balloon, wherein the pair of inflate/deflate rods is automatically inserted or removed from the SRF cavity by controlled motorized motions at least one rail.

19. The method of claim 13 wherein the at least one pressurized balloon comprises a rubberized/nylon balloon.

20. The method of claim 13 wherein the hollow structure comprises a cavity comprising at least one of: a multicell elliptical cavity among a plurality of adjacent cavities, and a dressed multicell cavity among a plurality of adjacent cavities.

Assignees

• Fermi Res Alliance Llc

Inventors

• Hassan Mohamed Awida
• Passarelli Donato

Classifications

• H05H7/20 Primary

  with superconductive walls · CPC title

• H05H7/22

  Details of linear accelerators, e.g. drift tubes (H05H7/02 - H05H7/20 take precedence) · CPC title