EP2749151B1 - Résonateur haute fréquence et accélérateur de particules comportant un tel résonateur haute fréquence - Google Patents

Résonateur haute fréquence et accélérateur de particules comportant un tel résonateur haute fréquence Download PDF

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Publication number
EP2749151B1
EP2749151B1 EP12769948.6A EP12769948A EP2749151B1 EP 2749151 B1 EP2749151 B1 EP 2749151B1 EP 12769948 A EP12769948 A EP 12769948A EP 2749151 B1 EP2749151 B1 EP 2749151B1
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EP
European Patent Office
Prior art keywords
resonator
cavity
coating
outer coating
lateral surface
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.)
Not-in-force
Application number
EP12769948.6A
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German (de)
English (en)
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EP2749151A1 (fr
Inventor
Michael Back
Oliver Heid
Michael Kleemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PL12769948T priority Critical patent/PL2749151T3/pl
Publication of EP2749151A1 publication Critical patent/EP2749151A1/fr
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Publication of EP2749151B1 publication Critical patent/EP2749151B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to an RF resonator according to claim 1, and a particle accelerator for accelerating electrically charged particles according to claim 11.
  • HF resonators high-frequency electromagnetic oscillations can be excited.
  • RF resonators may also be referred to as cavity resonators.
  • RF resonators are used, for example, in particle accelerators for accelerating electrically charged particles.
  • WO 2011/061026 discloses an RF cavity into which RF power can be coupled to generate an electromagnetic field in the interior of the RF cavity.
  • the object of the present invention is therefore to provide a better evacuatable RF resonator.
  • This object is achieved by an RF resonator having the features of claim 1.
  • This object is achieved by a particle accelerator having the features of claim 11. Preferred developments are specified in the dependent claims.
  • An inventive RF resonator comprises a cylindrical cavity made of a dielectric material.
  • An inner side of the cavity has an electrically conductive coating, which is subdivided into a first inner coating and a second inner coating by an electrically insulating gap surrounding a circumferential surface of the cavity in an annular manner.
  • An outer side of the cavity has an electrically conductive first outer coating and an electrically conductive second outer coating. The first outer coating and the second outer coating are electrically isolated from each other.
  • the RF resonator includes means arranged to apply a high frequency electrical voltage between the first outer coating and the second outer coating.
  • the cylindrical cavity of this RF resonator can be easily evacuated and has no problems to be sealed breakthroughs, especially no difficult to seal metal-ceramic compounds on.
  • the device of the RF resonator can capacitively excite a high-frequency electromagnetic oscillation in the RF resonator via the conductive outer and inner coatings.
  • the annular circumferential gap is perpendicular to a longitudinal direction the cylindrical cavity oriented.
  • the RF resonator then has a mirror and rotational symmetry, which enables excitation of symmetrical vibration modes.
  • the first outer coating and the second outer coating each circulate annularly around the lateral surface of the cavity.
  • the outside of the RF resonator on a mirror and rotational symmetry which allows excitation symmetric vibration modes.
  • the first outer coating is adjacent to the first inner coating in a direction oriented perpendicular to the lateral surface of the cavity.
  • the first outer coating is adjacent to the first inner coating in a direction oriented perpendicular to the lateral surface of the cavity.
  • the second outer coating is adjacent to the second inner coating in a direction oriented perpendicular to the lateral surface of the cavity.
  • the second outer coating is adjacent to the second inner coating in a direction oriented perpendicular to the lateral surface of the cavity.
  • the device comprises a solid-state power transistor.
  • the RF power to be coupled into the RF resonator can be generated near the location of the launch.
  • the device comprises a plurality of solid-state power transistors, which are arranged in a ring around the lateral surface of the cavity.
  • a plurality of solid-state power transistors enables the excitation of a particularly high RF power in the RF resonator.
  • the dielectric material is a glass or a ceramic.
  • glass and ceramic have suitable mechanical properties for use as a vacuum vessel.
  • the cavity has a circular cylindrical shape.
  • a circular-cylindrical cavity allows excitation of vibration modes suitable for accelerating charged particles.
  • the cavity is designed to be evacuated to an air pressure reduced in relation to an environment of the cavity.
  • the RF resonator can then be used to accelerate electrically charged particles.
  • An inventive particle accelerator for accelerating electrically charged particles has an RF resonator of the aforementioned type.
  • the RF resonator in this particle accelerator can be evacuated to a low pressure and has no difficult to seal seams.
  • FIG. 1 shows an RF resonator 100 in a highly schematic representation.
  • a high-frequency electromagnetic vibration mode can be excited.
  • the RF resonator 100 may serve to accelerate electrically charged particles in a particle accelerator.
  • the cavity 200 is formed as a hollow cylinder and has a circular disk-shaped first cover surface 210, a circular disk-shaped second cover surface 220 and a first surface 210 with the second cover surface 220 connecting lateral surface 230.
  • the cavity 200 is cut at the plane of the drawing. In FIG. 1 Thus, only one half of the cavity 200 is shown.
  • the hollow-cylindrical cavity 200 defines a longitudinal direction 201 and a radial direction 202, which is oriented perpendicular to the longitudinal direction 201.
  • the first cover surface 210 and the second cover surface 220 are each oriented perpendicular to the longitudinal direction 201.
  • the lateral surface 230 of the cavity 200 extends between the first cover surface 210 and the second cover surface 220 along the longitudinal direction 201.
  • first cover surface 210 and the second cover surface 220 may also be designed differently than circular disk-shaped.
  • the top surfaces 210, 220 could each have a rectangular shape or an elliptical shape.
  • the cavity 200 is made of an electrically insulating dielectric material.
  • the cavity 200 preferably consists of a glass or a ceramic.
  • glass and ceramic materials are sufficiently strong to withstand a high pressure differential between an interior of the cavity 200 and an environment of the cavity 200.
  • the cavity 200 of the RF resonator 100 encloses a cavity completely and preferably has no difficult to seal seams, in particular no metal-ceramic transitions on. This makes it possible to evacuate the cavity 200 to a reduced pressure compared to an air pressure in an environment of the cavity 200.
  • the cavity 200 may include one or more suitable flanges.
  • the first top surface 210 and the second top surface 220 of the cavity 200 may also include suitable openings or windows through which a charged particle beam may enter the interior of the cavity 200 and exit from the interior of the cavity 200.
  • the cavity 200 has an inner side 240, which faces the cavity 200 enclosed by the cavity.
  • the cavity 200 has an outer side 250, which faces an environment of the cavity 100.
  • an electrically conductive inner coating 300 is disposed on the inside 240 of the cavity 200.
  • the electrically conductive inner coating 300 may be made of a metal, for example.
  • the inner coating 300 is divided into a first inner coating 310 and a second inner coating 320. Between the first inner coating 310 and the second inner coating 320, an electrically insulating inner gap 330 is arranged, by means of which the first inner coating 310 is electrically insulated from the second inner coating 320. In the region of the inner gap 330, no conductive coating is provided on the inside 240 of the cavity 200.
  • the inner gap 330 is annularly arranged circumferentially on the lateral surface 230 of the cavity 200.
  • the inner gap 330 is preferably oriented perpendicular to the longitudinal direction 201 of the cavity 200 and thus parallel to the cover surfaces 210, 220.
  • the inner gap 330 is arranged centrally between the first cover surface 210 and the second cover surface 220.
  • the first inner coating 310 reveals the inside 240 of the first cover surface 210 and the inside 240 of one the first top surface 210 subsequent portion of the lateral surface 230 from.
  • the second inner coating 320 covers the inner side 240 of the second cover surface 220 and the inner side 240 of a section of the lateral surface 230 adjoining the second cover surface 220.
  • the inner gap 330 is preferably made very narrow.
  • the width of the inner gap 330 in the longitudinal direction 201 is preferably small compared to a length of the cavity 200 in the longitudinal direction 201 and small compared to a wavelength of a high-frequency oscillation mode that can be excited in the RF resonator 100.
  • an electrically conductive outer coating 400 is arranged on the outside 250 of the cavity 200.
  • the outer coating 400 may be made of a metal, for example.
  • the outer coating 400 includes a first outer coating 410 and a second outer coating 420. Between the first outer coating 410 and the second outer coating 420, an outer gap 430 is disposed. In the region of the outer gap 430, no electrically conductive coating is provided on the outer side 250 of the cavity 200. Outer gap 430 electrically isolates first outer coating 410 and second outer coating 420 from each other.
  • FIG. 2 shows a section through a portion of the lateral surface 230 of the cavity 200 of the RF resonator 100 in the region of the inner gap 330 and the outer gap 430.
  • the outer gap 430 is in the longitudinal direction 201 in the same position as the inner Gap 330.
  • the outer gap 430 is adjacent to the inner gap 330.
  • the outer gap 430 is arranged in an annular manner on the outer side 250 of the lateral surface 230. If the inner gap 330 is located in the longitudinal direction 201 of the cavity 200 in the middle between the first cover surface 210 and the second cover surface 220, the outer gap 430 is preferably also centrally between the first cover surface 210 and the second top surface 220 arranged.
  • the width of the outer gap 430 in the longitudinal direction 201 preferably corresponds substantially to the width of the inner gap 330 in the longitudinal direction 201.
  • the first outer coating 410 and the second outer coating 420 are likewise each arranged in an annular fashion on the outer side 250 of the lateral surface 230.
  • the annular outer coatings 410, 420 are preferably oriented perpendicular to the longitudinal direction 201 of the cavity 200.
  • the width of the first outer coating 410 in the longitudinal direction 201 and the width of the second outer coating 420 in the longitudinal direction 201 preferably corresponds approximately to the width of the outer gap 430 in the longitudinal direction 201 of the cavity 200.
  • the first outer coating 410 and the second outer coating 420 may in the longitudinal direction 201 also have a greater width or a smaller width than the outer gap 430.
  • the width of the first and second outer coatings 410, 420 in the longitudinal direction 201 is small compared to a wavelength of an electromagnetic vibration mode that can be excited in the cavity 200.
  • the first outer coating 410 is insulated from the first inner coating 310 by the dielectric lateral surface 230.
  • the second outer coating 420 is insulated from the second inner coating 320 by the dielectric lateral surface 230.
  • the first inner coating 410, the dielectric jacket surface 230 and the first inner coating 310 form a first capacitor.
  • the second outer coating 420, the dielectric jacket surface 230 and the second inner coating 320 form a second capacitor.
  • the first and second capacitors provide capacitive coupling between the first outer coating 410 and the first inner coating 310 and between the second outer coating 420 and the second inner coating 320, respectively.
  • One between the first outer coating 410 and the second outer coating 420 applied electrical voltage becomes capacitive in the first inner coating 310 and the second inner coating 320, such that an electrical voltage applied between the first outer coating 410 and the second outer coating 420 effects a substantially equal electrical voltage between the first inner coating 310 and the second inner coating 320.
  • the RF resonator 100 comprises a drive device 500, which is intended to couple high-frequency electromagnetic power into the cavity 200 of the RF resonator 100.
  • the drive device 500 is for this purpose designed to apply a high-frequency electrical voltage between the first outer coating 410 and the second outer coating 420.
  • the drive device 500 preferably has a solid state power transistor or another solid state switch.
  • the drive device 500 comprises a plurality of solid-state power transistors, which are arranged annularly in the region of the outer gap 430 circumferentially on the outer side 250 of the lateral surface 230 of the cavity 200.
  • a high-frequency electrical alternating voltage is applied between the first outer coating 410 and the second outer coating 420 by the drive device 500, a high-frequency alternating electrical voltage also occurs between the outer coatings 410, 420 and the inner coatings 310, 320 due to the capacitive couplings first inner coating 310 and second inner coating 320.
  • the coupled high-frequency electrical voltage excites a high-frequency electrical current flow.
  • the frequency of the alternating voltage applied by the drive device 500 between the first outer coating 410 and the second outer coating 420 corresponds to a resonance frequency of the RF resonator 100
  • the current flow induced in the inner coatings 310, 320 causes a Excitation of a resonant high-frequency oscillation mode in the interior of the cavity 200.
  • the drive device 500 allows high frequency electromagnetic power to be capacitively coupled into the cavity 200 of the RF resonator 100 to excite and amplify resonant high frequency vibration within the cavity 200.
  • the cavity 200 of the RF resonator 100 simultaneously serves as a vessel to be evacuated and as a carrier for the electrically conductive inner coating 300. Due to the possibility of capacitive excitation, the cavity 200 does not require any electrically conductive openings and therefore no difficult to seal metal-ceramic openings. transitions.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Particle Accelerators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Claims (11)

  1. Résonateur haute fréquence (100) comportant une cavité cylindrique (200) en un matériau diélectrique,
    dans lequel une face intérieure (240) de la cavité (200) présente un revêtement électriquement conducteur (300), qui est divisé en un premier revêtement intérieur (310) et un deuxième revêtement intérieur (320) par une fente (330) électriquement isolante entourant en forme d'anneau une surface d'enveloppe (230) de la cavité (200),
    dans lequel une face extérieure (250) de la cavité (200) présente un premier revêtement extérieur électriquement conducteur (410) et un deuxième revêtement extérieur électriquement conducteur (420),
    dans lequel le premier revêtement extérieur (410) et le deuxième revêtement extérieur (420) sont électriquement isolés l'un de l'autre,
    dans lequel le résonateur haute fréquence (100) comprend un dispositif (500), qui est prévu pour appliquer une tension électrique haute fréquence entre le premier revêtement extérieur (410) et le deuxième revêtement extérieur (420).
  2. Résonateur haute fréquence (100) selon la revendication 1, dans lequel la fente périphérique en forme d'anneau (330) est orientée perpendiculairement à une direction longitudinale (201) de la cavité cylindrique (200).
  3. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel le premier revêtement extérieur (410) et le deuxième revêtement extérieur (420) entourent chacun en forme d'anneau la surface d'enveloppe (230) de la cavité (200).
  4. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel le premier revêtement extérieur (410) est voisin du premier revêtement intérieur (310) dans une direction orientée perpendiculairement à la surface d'enveloppe (230) de la cavité (200).
  5. Résonateur haut fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel le deuxième revêtement extérieur (420) est voisin du deuxième revêtement intérieur (320) dans une direction (202) orientée perpendiculairement à la surface d'enveloppe (230) de la cavité (200).
  6. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel le dispositif (500) comprend un transistor de puissance à corps solide.
  7. Résonateur haute fréquence (100) selon la revendication 6, dans lequel le dispositif (500) comprend une multiplicité de transistors de puissance à corps solide, qui sont disposés en forme d'anneau autour de la surface d'enveloppe (230) de la cavité (200).
  8. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel le matériau diélectrique est un verre ou une céramique.
  9. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel la cavité (200) présente une forme de cylindre rond.
  10. Résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes, dans lequel la cavité (200) est formée de façon à être évacuée à une pression d'air réduite par rapport à un environnement de la cavité (200).
  11. Accélérateur de particules destiné à accélérer des particules chargées électriquement, dans lequel l'accélérateur de particules présente un résonateur haute fréquence (100) selon l'une quelconque des revendications précédentes.
EP12769948.6A 2011-09-29 2012-09-05 Résonateur haute fréquence et accélérateur de particules comportant un tel résonateur haute fréquence Not-in-force EP2749151B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12769948T PL2749151T3 (pl) 2011-09-29 2012-09-05 Rezonator wielkiej częstotliwości i akcelerator cząstek z takim rezonatorem wielkiej częstotliwości

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011083668A DE102011083668A1 (de) 2011-09-29 2011-09-29 HF-Resonator und Teilchenbeschleuniger mit HF-Resonator
PCT/EP2012/067266 WO2013045236A1 (fr) 2011-09-29 2012-09-05 Résonateur haute fréquence et accélérateur de particules comportant un résonateur haute fréquence

Publications (2)

Publication Number Publication Date
EP2749151A1 EP2749151A1 (fr) 2014-07-02
EP2749151B1 true EP2749151B1 (fr) 2015-07-15

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EP12769948.6A Not-in-force EP2749151B1 (fr) 2011-09-29 2012-09-05 Résonateur haute fréquence et accélérateur de particules comportant un tel résonateur haute fréquence

Country Status (9)

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US (1) US9577311B2 (fr)
EP (1) EP2749151B1 (fr)
JP (1) JP5763277B2 (fr)
KR (1) KR101941326B1 (fr)
CN (1) CN103959921B (fr)
DE (1) DE102011083668A1 (fr)
PL (1) PL2749151T3 (fr)
RU (1) RU2606188C2 (fr)
WO (1) WO2013045236A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011083668A1 (de) * 2011-09-29 2013-04-04 Siemens Aktiengesellschaft HF-Resonator und Teilchenbeschleuniger mit HF-Resonator
KR101641135B1 (ko) 2015-04-21 2016-07-29 한국원자력연구원 집속용 솔레노이드, 차폐체, 및 가속관이 일체형으로 정렬된 입자 가속 장치
DE102016109343A1 (de) 2016-05-20 2017-11-23 Christof-Herbert Diener Schaltungsanordnung zur Bereitstellung von Hochfrequenzenergie und System zur Erzeugung einer elektrischen Entladung
DE102018220967B4 (de) * 2018-12-04 2020-06-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung mit einer funkerkennungsanordnung und verfahren zum bereitstellen derselben

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Also Published As

Publication number Publication date
WO2013045236A1 (fr) 2013-04-04
DE102011083668A1 (de) 2013-04-04
RU2606188C2 (ru) 2017-01-10
RU2014116552A (ru) 2015-11-10
JP2014528151A (ja) 2014-10-23
JP5763277B2 (ja) 2015-08-12
EP2749151A1 (fr) 2014-07-02
CN103959921B (zh) 2016-08-24
KR20140069263A (ko) 2014-06-09
PL2749151T3 (pl) 2015-12-31
US20140346949A1 (en) 2014-11-27
CN103959921A (zh) 2014-07-30
KR101941326B1 (ko) 2019-01-22
US9577311B2 (en) 2017-02-21

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