EP0020253A1 - Insulated collector for an electronic power tube - Google Patents

Insulated collector for an electronic power tube Download PDF

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Publication number
EP0020253A1
EP0020253A1 EP80400724A EP80400724A EP0020253A1 EP 0020253 A1 EP0020253 A1 EP 0020253A1 EP 80400724 A EP80400724 A EP 80400724A EP 80400724 A EP80400724 A EP 80400724A EP 0020253 A1 EP0020253 A1 EP 0020253A1
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EP
European Patent Office
Prior art keywords
collector
axis
along
parts
assembly
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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.)
Granted
Application number
EP80400724A
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German (de)
French (fr)
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EP0020253B1 (en
Inventor
René Nazet
Pierre Ribout
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Thales SA
Original Assignee
Thomson CSF SA
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Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0020253A1 publication Critical patent/EP0020253A1/en
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Publication of EP0020253B1 publication Critical patent/EP0020253B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/027—Collectors
    • H01J23/033—Collector cooling devices

Definitions

  • the subject of the invention is an insulated collector for an electronic power tube and a tube equipped with such a collector.
  • electron tube collectors receive the beam electrons at the end of their journey. As a result, for physical reasons, they are often brought to high absolute potentials. In addition, the impact of electrons necessarily creates heat.
  • electrical isolation can only be done by insulating parts, for example ceramics.
  • the heat radiating devices are generally metallic. It is therefore necessary to interpose, between the collector proper and the radiator, pieces of ceramic or other insulators.
  • the assembly is therefore composed of materials which do not have the same coefficients of thermal expansion; which poses mechanical stress problems during operation.
  • the present invention relates to an electron collector and its cooling device in which these stress problems are avoided.
  • the insulated collector for a power tube is of the type comprising two heat conducting assemblies, the first connecting the undervoltage part of the collector to an insulating part, the second connecting the insulating part to the radiator.
  • these two assemblies are formed of deformable parts both in a cross-section plane of the collector and along its axis, having alternating anchors respectively on the insulating part and on the collector for the first set, on the insulating part and on the radiator for the second set, these parts being dimensioned so that they offer low resistance to the heat flow.
  • the collector of a vacuum tube for example a traveling wave tube.
  • This collector comprises a copper enclosure in the form of a tube hollowed out in its central part, which has the shape of a cone of revolution around the axis of the tube, which is also the axis of the electron beam when the tube is in operation. .
  • the outer surface of the tube is brazed a first elastic assembly, 2, which will be described later.
  • This assembly 2 is brazed on the internal part of a ceramic tube 3.
  • the external face of this tube 3 is brazed to a second elastic assembly 4 which supports a piece of copper 5, which cools the collector.
  • This device has as axis of revolution the axis of the collector.
  • the radiator 5 is electrically disconnected from the collector 1 and can be grounded, whatever the potential of the collector.
  • the collector 1 tends to heat up by absorption of the electrons. Its coefficient of thermal expansion is different from that of ceramic 3. It is the same for the radiator 5. The two assemblies 2 and 4, therefore have during operation to withstand the stresses which result therefrom.
  • the invention makes it possible to produce an assembly capable of withstanding these constraints.
  • Figure 2 and Figures 3 and 4 respectively show a cross section, and partial views of a first embodiment of the first or second example.
  • a part 10 is shown in FIG. 3. It has a backbone 12.
  • This backbone carries bars 13 (thorn and bars can form a monobloc assembly or be assembled brazed).
  • the backbone is brazed to the collector and the bars to the ceramic.
  • the part 11 comprises two identical longitudinal members 15 and 16. Each of these beams is connected to the other by a set of spacers 17 separated from each other by so-called "flexibility" slots 18 which extend into the side members.
  • the assembly is elastic and can deform in length in the direction of the generator, or in compression in the plane of the cross section.
  • the assembly 4 is analogous to the assembly 2. It should be noted that when one of the assemblies works in compression the other works in extension.
  • FIG. 5 another side embodiment of the assembly 2 is shown seen from the side.
  • the assembly 4 as in the previous case is constituted in a similar manner. But while one works in compression, the other works in extension and vice versa.
  • the assembly 2 is composed of flexible mechanical elements 20 extending essentially in the planes in cross section of the cylinder which forms the external surface of the manifold 1.
  • Each element comprises a succession of fasteners brazed alternately at points 21 on the manifold 1 and at points 22 on ceramic 3, the whole forming a broken line.
  • These elements are arched as shown in FIG. 5 in a first direction for the elements 30, and in the opposite direction for the elements 31.
  • the plane 100 is substantially the median plane of the collector. This arrangement halves the longitudinal deformations of the elements.
  • Figure 7 shows in the same way an element of the assembly 4, whose fasteners are supported on the ceramic sleeve 3 and the radiator 5 and are brazed at 41 and 40 respectively on the ceramic 3 and the radiator 5.
  • Figure 8 shows a portion of the assembly 2 seen from the side.
  • FIG. 9 represents a top view of an element of the assembly 2, or of the assembly 4. Before brazing, this element is circular and the anchoring points 21 and 22 are clearly seen.
  • the cylinder 1 expands more than the part 3 of the ceramic. Point 21 moves away from the circumference and the whole fits into two polygons.
  • the invention can be applied to all electronic power tubes where the collector is not grounded.

Abstract

Le collecteur (1) sous tension est entouré d'un manchon de céramique (3) et d'un radiateur de chaleur (5). Entre ces trois pièces sont interposés respectivement deux ensembles élastiques (2, 4) ayant les points d'ancrage pour l'un sur le collecteur sous-tension et le manchon de céramique alternativement, pour l'autre sur le manchon de céramique et le radiateur alternativement. Les deux ensembles sont formés de pièces pouvant se déformer à la fois dans les plans de sections droites et l'axe du système. Application aux tubes électroniques de puissance.The collector (1) under voltage is surrounded by a ceramic sleeve (3) and a heat radiator (5). Between these three parts are interposed respectively two elastic assemblies (2, 4) having the anchoring points for one on the undervoltage collector and the ceramic sleeve alternately, for the other on the ceramic sleeve and the radiator alternately. The two assemblies are formed of parts which can deform both in the planes of straight sections and the axis of the system. Application to electronic power tubes.

Description

L'invention a pour objet un collecteur isolé pour tube électronique de puissance et un tube équipé d'un tel collecteur. On sait que les collecteurs de tubes électroniques reçoivent en fin de leur parcours les électrons du faisceau. Il en résulte que pour des raisons physiques ils sont souvent portés à des potentiels en valeur absolue élevés. De plus, l'impact des électrons crée nécessairement un dégagement de chaleur.The subject of the invention is an insulated collector for an electronic power tube and a tube equipped with such a collector. We know that electron tube collectors receive the beam electrons at the end of their journey. As a result, for physical reasons, they are often brought to high absolute potentials. In addition, the impact of electrons necessarily creates heat.

Le problème se pose donc d'une part d'assumer le refroidissement de ce collecteur, d'autre part d'assumer son isolation électrique, ceci pour des raisons de sécurité.The problem therefore arises on the one hand to assume the cooling of this collector, on the other hand to assume its electrical insulation, this for safety reasons.

Or l'isolement électrique ne peut se faire qu'au moyen de pièces isolantes, par exemple de céramiques.However, electrical isolation can only be done by insulating parts, for example ceramics.

De plus, les dispositifs de rayonnement de la chaleur sont en général métalliques. On est donc conduit à interposer entre le collecteur proprement dit et le radiateur des pièces de céramique ou d'autres isolants. L'ensemble est donc composé de matériaux n'ayant pas les mêmes coefficients de dilatation thermique ; ce qui pose des problèmes de contraintes mécaniques en cours de fonctionnement.In addition, the heat radiating devices are generally metallic. It is therefore necessary to interpose, between the collector proper and the radiator, pieces of ceramic or other insulators. The assembly is therefore composed of materials which do not have the same coefficients of thermal expansion; which poses mechanical stress problems during operation.

La présente invention a pour objet un collecteur d'électrons et son dispositif de refroidissement dans lequel ces problèmes de contraintes sont évités.The present invention relates to an electron collector and its cooling device in which these stress problems are avoided.

Le collecteur isolé pour tube de puissance selon l'invention est du type comprenant deux ensembles conducteurs de la chaleur, le premier reliant la partie sous-tension du collecteur à une pièce isolante, le second reliant la pièce isolante au radiateur. Ils se caractérisent en ce que ces deux ensembles sont formés de pièces déformables à la fois dans un plan de section droite du collecteur et suivant son axe, ayant des ancrages alternés respectivement sur la pièce isolante et sur le collecteur pour le premier ensemble, sur la pièce isolante et sur le radiateur pour le second ensemble, ces pièces étant dimensionnées pour qu'elles offrent au flux thermique une faible résistance.The insulated collector for a power tube according to the invention is of the type comprising two heat conducting assemblies, the first connecting the undervoltage part of the collector to an insulating part, the second connecting the insulating part to the radiator. They characterized in that these two assemblies are formed of deformable parts both in a cross-section plane of the collector and along its axis, having alternating anchors respectively on the insulating part and on the collector for the first set, on the insulating part and on the radiator for the second set, these parts being dimensioned so that they offer low resistance to the heat flow.

L'invention sera mieux comprise au moyen de la description ci-après en se référant aux dessins annexés parmi lesquels :

  • La figure 1 est une vue schématique en coupe longitudinale du dispositif selon l'invention.
  • Les figures 2, 3, 4 représentent un premier exemple de-réalisation des pièces élastiques.
  • La figure 5 représente vu de côté un deuxième exemple de réalisation.
  • Les figures 6, 7 et 8 sont les vues partielles d'éléments composant l'ensemble de la figure 5.
  • Les figures 9, 10 et 11 sont des vues de dessus des mêmes éléments.
  • La figure 12 est une vue en perspective et en arraché de l'ensemble de la figure 5.
The invention will be better understood by means of the description below with reference to the accompanying drawings, in which:
  • Figure 1 is a schematic view in longitudinal section of the device according to the invention.
  • Figures 2, 3, 4 show a first example of de-realization of the elastic parts.
  • Figure 5 shows a side view of a second embodiment.
  • Figures 6, 7 and 8 are partial views of elements making up the assembly of Figure 5.
  • Figures 9, 10 and 11 are top views of the same elements.
  • FIG. 12 is a view in perspective and broken away of the assembly of FIG. 5.

Sur la figure 1, on voit en 1, le collecteur d'un tube à vide, par exemple un tube à ondes progressives. Ce collecteur comporte une enceinte de cuivre en forme de tube évidée dans sa partie centrale, qui a la forme d'un cône de révolution autour de l'axe du tube, qui est également l'axe du faisceau électronique quand le tube est en fonctionnement.In Figure 1, we see in 1, the collector of a vacuum tube, for example a traveling wave tube. This collector comprises a copper enclosure in the form of a tube hollowed out in its central part, which has the shape of a cone of revolution around the axis of the tube, which is also the axis of the electron beam when the tube is in operation. .

A.la surface externe du tube est brasé un premier ensemble élastique, 2, que l'on décrira plus loin. Cet ensemble 2 est brasé sur la partie interne d'un tube de céramique 3. La face externe de ce tube 3 est brasée à un deuxième ensemble élastique 4 qui supporte une pièce de cuivre 5, qui assure le refroidissement du collecteur. Ce dispositif a pour axe de révolution l'axe du collecteur.A. the outer surface of the tube is brazed a first elastic assembly, 2, which will be described later. This assembly 2 is brazed on the internal part of a ceramic tube 3. The external face of this tube 3 is brazed to a second elastic assembly 4 which supports a piece of copper 5, which cools the collector. This device has as axis of revolution the axis of the collector.

On voit donc que le radiateur 5 est déconnecté électriquement du collecteur 1 et peut être à la masse, quel que soit le potentiel du collecteur.It can therefore be seen that the radiator 5 is electrically disconnected from the collector 1 and can be grounded, whatever the potential of the collector.

Ceci étant on voit qu'en fonctionnement, le collecteur 1 a tendance à s'échauffer par absorption des électrons. Son coefficient de dilatation thermique est différent de celui de la céramique 3. Il en est de même du radiateur 5. Les deux ensembles 2 et 4, ont donc en cours de fonctionnement à supporter les contraintes qui en découlent.This being so, we see that in operation, the collector 1 tends to heat up by absorption of the electrons. Its coefficient of thermal expansion is different from that of ceramic 3. It is the same for the radiator 5. The two assemblies 2 and 4, therefore have during operation to withstand the stresses which result therefrom.

L'invention permet de réaliser un ensemble capable de supporter ces contraintes.The invention makes it possible to produce an assembly capable of withstanding these constraints.

La figure 2 et les figures 3 et 4 représentent respectivement une coupe transversale, et des vues partielles d'un premier exemple de réalisation du premier ou du deuxième exemple.Figure 2 and Figures 3 and 4 respectively show a cross section, and partial views of a first embodiment of the first or second example.

Sur la figure 2, on voit l'ensemble 2 vu en coupe. Il est formé de deux séries de pièces 10 et 11, qui s'étendent parallèlement à l'axe du collecteur.In Figure 2, we see the assembly 2 seen in section. It is formed by two series of parts 10 and 11, which extend parallel to the axis of the collector.

La totalité des pièces recouvre la face interne de la céramique et la face externe du collecteur.All of the parts cover the internal face of the ceramic and the external face of the collector.

Une pièce 10 est représentée figure 3. Elle comporte une épine dorsale 12. Cette épine dorsale porte des barrettes 13 (épine et barrettes peuvent former un ensemble monobloc ou être assemblées brasées). L'épine dorsale est brasée au collecteur et les barrettes à la céramique.A part 10 is shown in FIG. 3. It has a backbone 12. This backbone carries bars 13 (thorn and bars can form a monobloc assembly or be assembled brazed). The backbone is brazed to the collector and the bars to the ceramic.

La pièce 11 comprend deux longerons 15 et 16 identiques. Chacun de ces longerons est relié à l'autre par un ensemble d'entretoises 17 séparées l'une de l'autre par des fentes dites de "souplesse" 18 qui se prolongent dans les longerons.The part 11 comprises two identical longitudinal members 15 and 16. Each of these beams is connected to the other by a set of spacers 17 separated from each other by so-called "flexibility" slots 18 which extend into the side members.

L'ensemble est élastique et peut se déformer en longueur dans le sens de la génératrice, ou en compression dans le plan de la section droite.The assembly is elastic and can deform in length in the direction of the generator, or in compression in the plane of the cross section.

Les pièces 10 et 11 s'emboîtent de la façon indiquée figure 2, les épines dorsales et les longerons 15 et 16 étant brasés sur le collecteur.The parts 10 and 11 fit together as shown in Figure 2, the backbones and the side members 15 and 16 being brazed to the manifold.

L'ensemble 4 est analogue à l'ensemble 2. Il y a lieu de remarquer que quand un des ensembles travaille en compression l'autre travaille en extension.The assembly 4 is analogous to the assembly 2. It should be noted that when one of the assemblies works in compression the other works in extension.

Sur la figure 5 est représenté vu de côté un autre exemple de réalisation de l'ensemble 2.In FIG. 5, another side embodiment of the assembly 2 is shown seen from the side.

L'ensemble 4 comme dans le cas précédent est constitué de façon analogue. Mais alors que l'un travaille en compression, l'autre travaille en extension et vice-versa.The assembly 4 as in the previous case is constituted in a similar manner. But while one works in compression, the other works in extension and vice versa.

L'ensemble 2 est composé d'éléments mécaniques souples 20 s'étendant essentiellement dans les plans en section droite du cylindre qui forme la surface extérieure du collecteur 1. Chaque élément comporte une succession d'attaches brasées alternativement aux points 21 sur le collecteur 1 et aux points 22 sur la céramique 3, le tout formant une ligne brisée. Ces éléments sont cambrés comme le montre la figure 5 dans un premier sens pour les éléments 30, et dans le sens inverse pour les éléments 31. Le plan 100 est sensiblement le plan médian du collecteur. Cette disposition divise par deux les déformations longitudinales des éléments.The assembly 2 is composed of flexible mechanical elements 20 extending essentially in the planes in cross section of the cylinder which forms the external surface of the manifold 1. Each element comprises a succession of fasteners brazed alternately at points 21 on the manifold 1 and at points 22 on ceramic 3, the whole forming a broken line. These elements are arched as shown in FIG. 5 in a first direction for the elements 30, and in the opposite direction for the elements 31. The plane 100 is substantially the median plane of the collector. This arrangement halves the longitudinal deformations of the elements.

La figure 7 représente de la même façon un élément de l'ensemble 4, dont les attaches s'appuient sur le manchon de céramique 3 et le radiateur 5 et sont brasées en 41 et 40 respectivement sur la céramique 3 et le radiateur 5.Figure 7 shows in the same way an element of the assembly 4, whose fasteners are supported on the ceramic sleeve 3 and the radiator 5 and are brazed at 41 and 40 respectively on the ceramic 3 and the radiator 5.

La figure 8 montre une portion de l'ensemble 2 vu de côté.Figure 8 shows a portion of the assembly 2 seen from the side.

La figure 9 représente vue du dessus un élément de l'ensemble 2, ou de l'ensemble 4. Avant brasage, cet élément est circulaire et on voit clairement les points d'ancrage 21 et 22.FIG. 9 represents a top view of an element of the assembly 2, or of the assembly 4. Before brazing, this element is circular and the anchoring points 21 and 22 are clearly seen.

Au moment du brasage, et en fonctionnement, le cylindre 1 se dilate plus que la pièce 3 de la céramique. Le point 21 s'éloigne de la circonférence et l'ensemble s'inscrit dans deux polygones.At the time of brazing, and in operation, the cylinder 1 expands more than the part 3 of the ceramic. Point 21 moves away from the circumference and the whole fits into two polygons.

Le même phénomène, pour l'ensemble 4 figure 1 a lieu mais en sens inverse. Ce sont les points 41 qui ancrés sur la céramique 3 restent fixes,les points 40 ancrés sur le cuivre 5 qui ont tendance à s'écarter.The same phenomenon, for set 4 figure 1 takes place but in opposite direction. It is the points 41 which anchored on the ceramic 3 remain fixed, the points 40 anchored on the copper 5 which tend to move away.

On voit clairement sur la figure 12, en perspective et en arraché l'ensemble, collecteur 1, isolant 3, radiateur 5 et les pièces 2 et 4.We can clearly see in Figure 12, in perspective and cut away the assembly, manifold 1, insulator 3, radiator 5 and parts 2 and 4.

L'ensemble est entouré d'ailettes 6.The whole is surrounded by fins 6.

Bien entendu, l'invention peut s'appliquer à tous les tubes électroniques de puissance où le collecteur n'est pas à la masse.Of course, the invention can be applied to all electronic power tubes where the collector is not grounded.

Claims (5)

1. Collecteur isolé pour tube électronique de puissance comportant deux ensembles conducteurs de la chaleur, le premier reliant la partie sous tension du collecteur à une pièce isolante, le second la pièce isolante à un radiateur thermique, caractérisé en ce que le premier ensemble a des points d'ancrage alternés respectivement sur la pièce isolante et sur la partie sous tension du collecteur, le second des points d'ancrage alternés respectivement sur la pièce isolante et le radiateur thermique, ces deux ensembles étant formés de pièces élastiques pouvant se déformer à la fois suivant l'axe du collecteur, et suivant ses sections droites.1. Insulated collector for an electronic power tube comprising two heat conducting assemblies, the first connecting the live part of the collector to an insulating part, the second the insulating part to a heat radiator, characterized in that the first set has alternating anchor points respectively on the insulating part and on the live part of the collector, the second of the alternating anchor points respectively on the insulating part and the heat radiator, these two assemblies being formed of elastic parts which can deform at the times along the axis of the collector, and along its straight sections. 2. Collecteur suivant la revendication 1,caractérisé en ce que les pièces élastiques s'étendent le long de l'axe du collecteur.2. Collector according to claim 1, characterized in that the elastic parts extend along the axis of the collector. 3. Collecteur suivant la revendication 2,caractérisé en ce que ces pièces comportent le long des sections droites des fentes dites de souplesse et des longerons s'étendant le long des génératrices de cylindres ayant pour axe l'axe du collecteur.3. Collector according to Claim 2, characterized in that these parts comprise, along the cross sections, so-called flexibility slots and longitudinal members extending along the generatrices of cylinders having the axis of the collector axis. 4. Collecteur suivant la revendication 2, caractérisé en ce que les pièces élastiques s'étendent essentiellement suivant les plans de sections droites du collecteur, ces pièces étant pour une température déterminée formées d'anneaux circulaires.4. Collector according to claim 2, characterized in that the elastic parts extend essentially along the planes of straight sections of the collector, these parts being for a determined temperature formed of circular rings. 5. Tube électronique comportant un collecteur suivant l'une des revendications 1, 2, 3 ou 4.5. Electronic tube comprising a collector according to one of claims 1, 2, 3 or 4.
EP80400724A 1979-05-31 1980-05-23 Insulated collector for an electronic power tube Expired EP0020253B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7913982 1979-05-31
FR7913982A FR2458139A1 (en) 1979-05-31 1979-05-31 INSULATED COLLECTOR FOR ELECTRONIC POWER TUBE AND TUBE EQUIPPED WITH SUCH A COLLECTOR

Publications (2)

Publication Number Publication Date
EP0020253A1 true EP0020253A1 (en) 1980-12-10
EP0020253B1 EP0020253B1 (en) 1984-01-11

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EP80400724A Expired EP0020253B1 (en) 1979-05-31 1980-05-23 Insulated collector for an electronic power tube

Country Status (5)

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US (1) US4358706A (en)
EP (1) EP0020253B1 (en)
JP (1) JPS55161335A (en)
DE (1) DE3066080D1 (en)
FR (1) FR2458139A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000249A1 (en) * 1982-06-25 1984-01-19 Hughes Aircraft Co Buffer for an electron beam collector
EP0156003A1 (en) * 1984-02-29 1985-10-02 Siemens Aktiengesellschaft Electron gun for an electron tube, especially for a travelling-wave tube

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
JPS59501185A (en) * 1982-06-25 1984-07-05 ヒユ−ズ・エアクラフト・カンパニ− Cushioning material for electron beam current collector
US5025193A (en) * 1987-01-27 1991-06-18 Varian Associates, Inc. Beam collector with low electrical leakage
US6320315B1 (en) * 1998-10-22 2001-11-20 Litton Systems, Inc. Ceramic electron collector assembly having metal sleeve for high temperature operation
FR2818789A1 (en) * 2000-12-21 2002-06-28 Thomson Tubes Electroniques Cooling equipment for electronic components, comprises inner set of radial cooling fins, intermediate supporting cylinder and outer set of radial cooling fins with smaller angular spacing
US6653787B2 (en) 2002-03-05 2003-11-25 L-3 Communications Corporation High power density multistage depressed collector

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3626230A (en) * 1969-10-02 1971-12-07 Varian Associates Thermally conductive electrical insulator for electron beam collectors
US3717787A (en) * 1971-08-19 1973-02-20 Sperry Rand Corp Compact depressed electron beam collector
US3823772A (en) * 1972-12-08 1974-07-16 Varian Associates Electrical insulator assembly

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Publication number Priority date Publication date Assignee Title
FR1349152A (en) * 1962-05-08 1964-01-17 Thomson Houston Comp Francaise Collector for electron beam tubes of annular section
US3662212A (en) * 1970-07-15 1972-05-09 Sperry Rand Corp Depressed electron beam collector
US3881547A (en) * 1973-11-12 1975-05-06 Varian Associates Heat transfer device employing fins in a fluid stream
US4054811A (en) * 1975-04-09 1977-10-18 Siemens Aktiengesellschaft Electron beam collector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626230A (en) * 1969-10-02 1971-12-07 Varian Associates Thermally conductive electrical insulator for electron beam collectors
US3717787A (en) * 1971-08-19 1973-02-20 Sperry Rand Corp Compact depressed electron beam collector
US3823772A (en) * 1972-12-08 1974-07-16 Varian Associates Electrical insulator assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000249A1 (en) * 1982-06-25 1984-01-19 Hughes Aircraft Co Buffer for an electron beam collector
EP0156003A1 (en) * 1984-02-29 1985-10-02 Siemens Aktiengesellschaft Electron gun for an electron tube, especially for a travelling-wave tube

Also Published As

Publication number Publication date
DE3066080D1 (en) 1984-02-16
US4358706A (en) 1982-11-09
FR2458139B1 (en) 1982-01-15
FR2458139A1 (en) 1980-12-26
EP0020253B1 (en) 1984-01-11
JPS55161335A (en) 1980-12-15

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