EP4154686A1 - Composant hf chaud muni d'une cavite hf - Google Patents
Composant hf chaud muni d'une cavite hfInfo
- Publication number
- EP4154686A1 EP4154686A1 EP21725551.2A EP21725551A EP4154686A1 EP 4154686 A1 EP4154686 A1 EP 4154686A1 EP 21725551 A EP21725551 A EP 21725551A EP 4154686 A1 EP4154686 A1 EP 4154686A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal
- hot
- component
- cavity
- protuberance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/30—Auxiliary devices for compensation of, or protection against, temperature or moisture effects ; for improving power handling capability
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/14—Vacuum chambers
- H05H7/18—Cavities; Resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Definitions
- the invention relates to a microwave or hot HF component provided with a microwave or HF cavity.
- hot HF component is meant a component whose conductive materials evolve in a normal resistivity regime (as opposed to the superconducting regime) or in other words a non-superconducting HF component.
- the invention applies in particular to the HF components of particle accelerators. It also applies to any other hot HF component with an HF cavity, such as circulators, magic tees and loads.
- Linear particle accelerators use an electromagnetic field of the HF microwave type to accelerate the particles. These accelerators work with all types of charged particles but have in common the need to provide accelerating structures with very high microwave powers, generally coming from an electron tube such as a klystron or a magnetron.
- the main limitation of hot HF components is the management of the heat dissipation of the power that the HF wave deposits by the Joule effect in the accelerating structures.
- the resistivity of the material increases with temperature, so the hotter the surface of the accelerator structure, the more energy is dissipated in the form of the Joule effect, and the more the surface heats up.
- the accelerating structures are traversed by channels or pipes in which the cooling liquid is circulated.
- This solution involves many machining operations and does not allow homogeneous cooling of the HF surfaces of the accelerator structure, in particular the deep zones forming internal protuberances such as irises and beaks.
- Figures 1 and 2 schematically show an external view and a sectional view of such an embodiment.
- FIG. 1 schematically represents a hot HF component 1 comprising a plurality of linear and rectilinear channels 2 arranged in the periphery of the casing 3 of a cavity 4.
- the casing 3 comprises internal protuberances 5.
- a heat transfer fluid circulates in channels 2 and evacuates the energy dissipated by the Joule effect in the hot HF component 1.
- FIG. 2 schematically represents, in sectional view, such a channel 2 in a hot HF component 1.
- FIG. 3 represents an embodiment in which the internal protuberances 5 are irises, i.e. protuberances which tighten at their end.
- FIG. 4 represents an embodiment in which the internal protuberances 5 are nozzles, i.e. protuberances which tighten and then widen at their end.
- An object of the invention is to overcome the problems mentioned above, and in particular to improve the cooling of an HF component.
- a hot HF component provided with an HF cavity delimited by an envelope comprising at least one internal protuberance, said envelope comprising at least one internal channel following the contour of its internal surface to allow the flow of a heat transfer fluid intended to evacuate the heat energy coming from the cavity.
- the internal channel is flush with the internal surface of the envelope.
- an internal protuberance is a beak or an iris.
- the present invention applies to any type of protuberance.
- the external part of the portions of the internal channel outside the internal protuberances comprises an external cover layer.
- FIG.2 schematically illustrates a hot HF component provided with an HF cavity, in sectional view, according to the state of the art
- FIG.3 schematically illustrates a hot HF component provided with an HF cavity, in sectional view, with internal iris-shaped protuberances, according to the state of the art
- FIG.4 schematically illustrates a hot HF component provided with an HF cavity, in sectional view, with internal protuberances in the form of a spout, according to the state of the art
- FIG.5 schematically illustrates a hot HF component provided with an HF cavity, in sectional view, according to one aspect of the invention.
- FIG.6 schematically illustrates a hot HF component provided with an HF cavity, in sectional view, according to another aspect of the invention.
- a hot HF component 1 provided with an HF cavity 4 delimited by a casing 3 comprising at least one internal protuberance 5.
- the casing 3 comprises at least an internal channel 6 following the contour of its internal surface 7 to allow the flow of a heat transfer fluid intended to evacuate the heat energy coming from the cavity 4.
- the internal channel 6 is flush with the internal surface 7 of the casing 3.
- internal channel 6 flush with the internal surface 7 of the casing 3, the fact that part of the wall of the internal channel 6 forms part of the internal surface 7 of the protuberance. Its thickness is configured to withstand the mechanical stresses that it must withstand.
- An internal protuberance 5 can be a beak, or an iris.
- a hot HF component 1 provided with an HF cavity 4 delimited by a casing 3 comprising at least one internal protuberance 5.
- the casing 3 comprises at least an internal channel 6 following the contour of its internal surface 7 to allow the flow of a heat transfer fluid intended to evacuate heat energy coming from the cavity 4.
- the external part of the portions of the channel 6 outside the protuberances internal 5 comprises an external cover layer 8.
- the present invention allows cooling as close as possible to the surface of the cavity, thus making it possible to significantly improve the cooling of the hottest areas.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2005239A FR3110811B1 (fr) | 2020-05-20 | 2020-05-20 | Composant HF chaud muni d'une cavité HF |
| PCT/EP2021/063157 WO2021233919A1 (fr) | 2020-05-20 | 2021-05-18 | Composant hf chaud muni d'une cavite hf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4154686A1 true EP4154686A1 (fr) | 2023-03-29 |
Family
ID=72560713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21725551.2A Pending EP4154686A1 (fr) | 2020-05-20 | 2021-05-18 | Composant hf chaud muni d'une cavite hf |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12300868B2 (fr) |
| EP (1) | EP4154686A1 (fr) |
| FR (1) | FR3110811B1 (fr) |
| WO (1) | WO2021233919A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU414760A2 (fr) * | 1971-06-15 | 1974-02-05 | ||
| FR2621439A1 (fr) * | 1987-10-02 | 1989-04-07 | Cgr Mev | Cavite resonnante, dispositif de couplage, accelerateur de particules et tube a ondes progressives comportant de telles cavites |
| US4918049A (en) * | 1987-11-18 | 1990-04-17 | Massachusetts Institute Of Technology | Microwave/far infrared cavities and waveguides using high temperature superconductors |
-
2020
- 2020-05-20 FR FR2005239A patent/FR3110811B1/fr active Active
-
2021
- 2021-05-18 WO PCT/EP2021/063157 patent/WO2021233919A1/fr not_active Ceased
- 2021-05-18 US US17/926,455 patent/US12300868B2/en active Active
- 2021-05-18 EP EP21725551.2A patent/EP4154686A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3110811A1 (fr) | 2021-11-26 |
| US20230187802A1 (en) | 2023-06-15 |
| WO2021233919A1 (fr) | 2021-11-25 |
| FR3110811B1 (fr) | 2026-01-16 |
| US12300868B2 (en) | 2025-05-13 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
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| 17Q | First examination report despatched |
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