EP2163142A1 - Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension - Google Patents

Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension

Info

Publication number
EP2163142A1
EP2163142A1 EP07729972A EP07729972A EP2163142A1 EP 2163142 A1 EP2163142 A1 EP 2163142A1 EP 07729972 A EP07729972 A EP 07729972A EP 07729972 A EP07729972 A EP 07729972A EP 2163142 A1 EP2163142 A1 EP 2163142A1
Authority
EP
European Patent Office
Prior art keywords
voltage
anode
ray tube
line structure
integrated
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.)
Withdrawn
Application number
EP07729972A
Other languages
German (de)
English (en)
Inventor
Kurt Holm
Adrian Riedo
Hans Reusser
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.)
Comet Holding AG
Original Assignee
Comet Holding AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Comet Holding AG filed Critical Comet Holding AG
Publication of EP2163142A1 publication Critical patent/EP2163142A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H01J35/165—Vessels; Containers; Shields associated therewith joining connectors to the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/12—Cooling non-rotary anodes
    • H01J35/13—Active cooling, e.g. fluid flow, heat pipes

Definitions

  • the invention relates to a high-voltage X-ray tube, in which in a vacuumized interior, a cathode, which is in the operating state at a negative high voltage, and an anode, which is in the operating state at a positive high voltage, are arranged opposite to each other. More particularly, the invention relates to such a high voltage x-ray tube in which the anode is attached to an anode isolation member.
  • X-ray tubes in metal are now preferably made in a coaxial design, wherein the outer shell of the tube is at ground potential and the cathode or the anode are fixed inside by a ceramic insulator.
  • These specially shaped insulator elements are mainly made of Al 2 O 3 ceramic.
  • metal-ceramic X-ray tubes according to the structure of the ceramic insulator, a distinction between two concepts, namely between the use of disc-shaped ceramic on the one hand and the use of cylindrical or conical ceramic on the other hand.
  • the insulation path is transverse to the tube axis.
  • the disc To ensure sufficient dielectric strength, the disc must therefore have a sufficient diameter.
  • the use of disc-shaped insulators therefore leads to tubes with a large diameter but short overall length.
  • the high voltage is supplied by means of a special insulating adapter, which receives the cable with the high voltage connector and connects in a suitable manner via the disc ceramic with the tube anode or cathode.
  • the disadvantages of this solution are that the tube has a large diameter and because of radiation protection reasons necessary Leading receives a high weight.
  • the disk ceramic is not ideal for high voltage reasons, since the field strength direction is parallel to the ceramic surface and therefore there is a risk of instabilities due to flashovers.
  • the installation of a special adapter also creates two separate insulation interfaces, which pose additional risks for high-voltage flashovers.
  • cylindrical or cone-shaped insulators are used. These once have the electrical advantage that the field strength is largely perpendicular to the surface and such a tube is therefore not so prone to electrical flashovers. In addition, they allow a narrow design of the tube, since the ceramic insulating gap is parallel to the tube axis and the dielectric strength is significantly greater by the vacuum than parallel to the ceramic surface. Since the commercial high-voltage plug can be connected directly to the ceramic, a special adapter is unnecessary and the overall length can be kept small.
  • anode in an X-ray tube is heated by the electron beam during operation, a special anode cooling is required. This can be done in a simple manner by air or water, but only in those situations in which the anode is at ground potential.
  • the X-ray tubes in which the one electrode, preferably the anode, at ground potential, and the second electrode, preferably the cathode, is at high voltage are referred to as the so-called unipolar X-ray tubes. Conversely, in a so-called bipolar X-ray tube, both electrodes are at a high voltage.
  • conical ceramic has proven particularly useful as an insulator in X-ray tubes. On the one hand, it allows high dielectric strength and, on the other hand, it also ensures a compact design.
  • a ceramic is preferably used in unipolar tubes on the cathode side.
  • the anode is then grounded and can be cooled with water (or at best with air).
  • a problem arises with bipolar tubes. Since the anode is also at high voltage in these bipolar X-ray tubes as the cathode, the anode cooling must be carried out in isolation, since there is a high potential difference between the anode and the cooling unit.
  • an insulating oil is preferably used in this case.
  • these objects are achieved in particular by the elements of the independent claims. Further advantageous embodiments are also apparent from the dependent claims and the description.
  • these objects are achieved by the invention in that in a high-voltage X-ray tube, in which in a vacuumized interior a cathode which is in the operating state at a negative high voltage, and an anode which is in the operating state at a positive high voltage, are arranged opposite to each other, wherein the anode is attached to an anode insulating member, the anode insulating member has a cylindrical or an anode tapered shape and an opening for receiving a high voltage connector, and a line structure is provided, by means of which a coolant to the anode can be fed.
  • the advantage of this invention is in particular that the inventive X-ray tube can combine a compact design with a simple and reliable anode cooling.
  • By tapering towards the anode form all the advantages of X-ray tubes can be maintained, which are based on the principle of conical or cylindrical ceramic see.
  • a significant reduction in size compared to the conventional tubes can be achieved because the cooling of the anode can be realized thanks to the proposed line structure without additional adapters or other similar intermediate elements.
  • the coolant is an insulating oil or another electrically non-conductive fluid.
  • This variant has the particular advantage that already proven cooling means and approaches can be used.
  • the use of an electrically non-conductive liquid solves the problem of unwanted electrical flashovers, so that the X-ray tube can always be operated with great safety and reliability.
  • the line structure comprises at least one inflow channel and at least one outflow channel.
  • the advantage of this embodiment lies in the fact that a closed circuit can be formed, through which the coolant can circulate undisturbed. Moreover, by means of a channel structure in which the coolant flows in one direction only, the oil accumulation or other such problems in the cooling system can be completely eliminated. After all This can also be a larger flow and thus a faster cooling of the anode can be ensured.
  • the line structure is completely integrated in the interior of the anode insulation element.
  • the advantage of this embodiment lies in the fact that absolutely no additional elements for anode cooling are needed.
  • the line structure is located completely inside the anode insulation element, so that, in particular, no changes to the high-voltage connector are necessary. In this embodiment, therefore, the standard high-voltage plug can still be used.
  • no special maintenance or special handling in the operation is necessary, since the line structure is well protected by the external influences through the wall of the insulation layer.
  • the line structure is integrated in the surface of the anode insulation element facing the high-voltage connector, wherein the line structure is at least partially open to the outside.
  • This embodiment variant has the particular advantage that it is very easy to access the line structure. In particular, this allows a very simple control or a very simple maintenance of the line structure. Last but not least, the production of such an anode insulation element is also considerably simplified. In addition, the maintenance is simplified again, since the usually used in the boundary layer between the anode insulation element and the high-voltage connector grease usually resinified me time and must be renewed.
  • the line structure can be sealed by the surface of the high-voltage plug.
  • the advantage of this embodiment is, in particular, that the surface of the high-voltage plug can be used automatically to seal the line structure. Therefore, no additional elements or seals are needed. The coolant can then circulate freely in the respective channels without causing oil leaks.
  • sealing means are provided on the high-voltage connector, by means of which the line structure can be sealed. This variant has the particular advantage that the seal can be improved and optimized by the use of special sealant. This ensures at all times that the pipe structure is optimally closed and that the coolant is not in contact with the outside air.
  • the high-voltage connector can be pulled out, for example, even if the cooling liquid is still in the line structure, without these would leak.
  • the security of use and the handling implicity of a high-voltage x-ray tube according to this embodiment are thus brought to a particularly high level. Also, if the sealant is damaged, only this element can be replaced, while the same high voltage connector can still be used.
  • the line structure is integrated in the surface of the high-voltage plug.
  • the most important advantage of this embodiment lies in the fact that, similar to the embodiment variant with the line structure in the surface of the anode insulation element, the line structure can be accessed very easily. This allows above all a very simple control or a very simple maintenance of the line structure, whereby the maintenance is significantly simplified.
  • this embodiment variant makes it possible to use standardized anode insulation elements (ie those which can also be used, for example, in unipolar X-ray tubes), while the line structure only comes to rest in the high-voltage connector.
  • the line structure is integrated in an intermediate element, wherein the intermediate element is arranged between the anode insulating element and the high-voltage connector.
  • the advantage of this variant is in particular that both standardized high-voltage connectors and standardized anode insulation elements can be used.
  • the conduit structure for guiding the coolant is integrated into a completely new element, which can be manufactured separately and also installed. The maintenance of such a chen line structure is thus particularly simplified. In the event of a fault or massive damage to the line structure, it is also very easy to replace the intermediate element without the entire anode insulating element and / or the high-voltage plug used being affected as well.
  • the at least one inflow channel and / or the at least one outflow channel are formed spirally.
  • This embodiment variant has the particular advantage that a much greater length of the ducts can be achieved by the spiral shape. Thereby, the insulation distance in the cooling liquid can be increased, and thus the withstand voltage and the reliability of the tube can be improved.
  • the at least one inflow channel and / or the at least one outflow channel are rectilinear.
  • the advantage of this embodiment lies in particular in the fact that a line structure with rectilinear channels can be produced much more simply and, essentially, can also be maintained much more easily.
  • the possibility of fluid congestion in the line structure in straight-line channels is significantly smaller.
  • the coolant can be supplied very quickly to the anode, which can have a beneficial effect at very high temperatures.
  • the line structure can be produced by drilling and / or casting.
  • the advantage of this embodiment lies in the fact that standardized production methods can be used to produce the conduit structure for the coolant (for example the coolant). Also, by drilling or by casting, a smooth surface of the channels in the duct structure can be obtained, which is crucial for a smooth flow of the cooling liquid.
  • the at least one inflow channel and / or the at least one outflow channel have a roundabout the or oval cross section.
  • This variant has the particular advantage that an optimal channel shape for the circulation of the coolant is used in the line structure. Thus, the possibility of congestion or other difficulty is massively reduced.
  • the present invention also relates to a corresponding method for producing the high-voltage x-ray tube according to the invention.
  • FIG. 1a shows a schematic cross-sectional view of a prior art high-voltage x-ray tube which has a construction with disc-shaped ceramic insulators;
  • Figure 1 b shows a schematic cross-sectional view of a high-voltage x-ray tube of the prior art, which has a construction with conical ceramic insulators;
  • FIG. 2 shows a schematic cross-sectional view of a high-voltage x-ray tube according to the invention
  • FIG. 3 shows a schematic cross-sectional view of the anode insulation element of the high-voltage x-ray tube with the corresponding high-voltage plug according to a first embodiment variant of the invention
  • FIG. 4 shows a schematic cross-sectional view of the anode insulation element of the high-voltage x-ray tube with the corresponding one High voltage plug according to a second embodiment of the invention
  • FIG. 5 shows a schematic cross-sectional view of the anode insulation element of the high-voltage x-ray tube with the corresponding high-voltage connector according to a third embodiment variant of the invention
  • FIG. 6 a shows a schematic cross-sectional view of the anode insulation element of the high-voltage x-ray tube with the corresponding high-voltage connector according to a fourth embodiment variant of the invention.
  • FIG. 6b shows a schematic cross-sectional view of the anode insulation element of the high-voltage x-ray tube with the corresponding high-voltage connector according to a fifth embodiment variant of the invention.
  • FIG. 1a schematically shows a high-voltage x-ray tube R of the prior art.
  • the high-voltage x-ray tube R has, among other things, an outer casing or lead 1, by means of which an interior space 11 is sealed and sealed.
  • the high-voltage x-ray tube R is coaxially constructed, which is represented in Figure 1a by a central axis.
  • the interior 11 is substantially under vacuum, which is generated once in the production of the high-voltage X-ray tube R.
  • an anode 2 and a cathode 8 are opposite to each other. By means of the applied high voltage, electrons e "are accelerated onto the anode 2 by the cathode 8.
  • x-rays 10 are produced at the anode 2, which are emitted into the surroundings through an exit window 9 in the lead 1.
  • the anode 2 and the cathode 8 are isolated from the lead 1 by disc-shaped insulation elements.
  • the anode insulation element 3a and the cathode insulation element 3b have a certain radius, so that a sufficient dielectric strength can be ensured.
  • the high voltage is supplied in such a high-voltage prior art X-ray tube R by means of specially formed insulating adapters 4a and 4b.
  • These adapters 4a and 4b each have openings 5a and 5b into which high-voltage plugs can be inserted, which supply the tube anode 2 or cathode 8 in a suitable manner with high voltage via the pane ceramic.
  • a special coolant for example, an insulating cooling oil for cooling the anode 2 must be used.
  • the cooling oil is guided through specially trained channels 6, 7 through the adapter 4a.
  • a channel 6 serves as a flow channel for the cooling oil, while the channel 7 is used as a drain channel.
  • This creates a cycle of the coolant which flows through the channel 6 to the anode, here receives the excess heat, and then flows out through the channel 7 again from the adapter 4a.
  • the two reference numerals 12a and 12b, and 12a 'and 12b' relate to two separate iso lationsgrenz lake, which arise due to the installation of the adapter 4a, or 4b, and which represent additional risks for high voltage flashovers.
  • FIG. 1 b schematically illustrates another high-voltage x-ray tube R of the prior art.
  • This high-voltage X-ray tube R now comprises conical electrode insulation elements 3a and 3b.
  • the elements described in Figure 1a are also provided in Figure 1 b with the same reference numerals.
  • the reference numeral 1 refers to the outer shell or the lead of the high-voltage x-ray tube R
  • the reference numeral 2 to the anode
  • the reference numerals 6 and 7 to the inflow channel, respect the outflow channel
  • the reference numeral 9 to the exit window for the X-rays 10
  • the reference numeral 11 on the vacuumized interior of the high voltage X-ray tube R.
  • the field strength thanks to the conical or cylindrical electrode insulators 3 a and 3 b, is largely perpendicular to the surface.
  • This high-voltage X-ray tube R is therefore not so prone to electrical flashovers.
  • the cathode insulation element 3b in FIG. 1b has an opening 5b which can accommodate a commercially available high-voltage plug. Since the high-voltage plug can be connected directly to the cathode insulation element 3b basically, a special adapter is unnecessary and the overall length can be kept small. However, on the anode side, another special adapter 4 must be used, which includes the insulated cooling pipes 6 and 7, and the connection 5a for the high-voltage connector. Also in this high-voltage X-ray tube creates an additional, endangered by high voltage interface 12b.
  • FIG. 2 schematically shows the structure of an embodiment variant of a high-voltage x-ray tube R according to the invention.
  • the elements which are known from FIGS. 1 a and 1 b are identified by the same reference symbols.
  • reference numeral 1 again refers to the outer envelope of the high-voltage X-ray tube R
  • the reference numeral 2 to the anode
  • the reference numerals 3a and 3b to the anode insulating member
  • the cathode insulating member the reference numerals 5a and 5b to the high-voltage connector terminals
  • the reference numeral 8 to the cathode the reference numeral 9 to the exit window for the X-ray radiation 10
  • the reference numeral 11 to the interior of the high-voltage X-ray tube R.
  • the anode insulation element 3a likewise has a cylindrical or a shape tapering towards the anode 2.
  • the anode insulation element 3a comprises such an opening 5a for receiving a high-voltage connector 12, which allows a direct connection, without adapters or such intermediate elements are needed.
  • a line structure is also provided, by means of which a coolant can be supplied to the anode 2.
  • FIG. 3 illustrates a first embodiment variant of the invention, in which the line structure with the inflow channel 6, and the outflow channel 7, is integrated in the surface of the high-voltage connector 12.
  • the conical high-voltage plug 12 has in this first embodiment on its surface open groove-shaped channels 6 and 7, through which the coolant (in particular the cooling oil or another suitable cooling liquid) can be passed. Due to the interference fit of the rubber cone 12 in the ceramic cone 3 a, the oil channels 6, 7 are laterally sealed so that no oil leaks can occur.
  • the inflow channel 6 has at its end an opening 6 ', through which the cooling liquid can escape to the anode 2.
  • the cooling liquid can succeed after the heat exchange through the opening T in the discharge channel 7.
  • These openings 6 'and T can in particular lie wholly or partially in the anode insulation element 3a.
  • the channels 6 and 7 may be rectilinear, but also arranged spirally. In addition, it is also possible to lead a plurality of inflow and / or outflow channels 6, 7 in parallel in order to reduce the pressure drop or to increase the flow of the cooling liquid.
  • FIG. 1 A second embodiment variant of the invention, in which the line structure with the inflow channel 6 and the outflow channel 7 is completely integrated in the interior of the anode insulating element 3a, is illustrated in FIG.
  • the conical ceramic anode insulation element 3a is provided with bores 6, 7, which run in the ceramic wall and serve to guide the flow of coolant. These bores 6, 7 are advantageously applied in the green compact prior to the firing of the ceramic.
  • the channels 6, 7 can also be integrated into the anode insulation element 3a by casting or another suitable manufacturing method.
  • the coolant enters the inflow channel 6 and leaves it through the opening 6 '. Subsequently, the coolant can flow through the opening T in the discharge channel 7.
  • the interface between the insulation element 3a and the high voltage connector is not changed. It can be used by standard plug. Also in this embodiment, the line structure rectilinear or spiral channels 6, 7 have. It is also in this This embodiment variant makes it possible to guide a plurality of channels 6, 7 in parallel in order to reduce the pressure drop or to increase the oil flow.
  • FIG. 5 shows a third embodiment variant of the invention, in which the line structure is integrated with the inflow channel 6 and the outflow channel 7 in an intermediate element 13, wherein the intermediate element 13 is arranged between the anode insulation element 3a and the high-voltage connector 12.
  • This third embodiment therefore comprises an intermediate element 13, which is inserted between the anode insulation element 3a and the high-voltage connector 12.
  • This intermediate element 13 now contains the inflow and outflow channels 6, 7 for the supply and removal of the coolant to the anode 2.
  • the intermediate part 13 can be sealed gap-free with the ceramic cone of the anode insulation element 3a by a suitable method. This can e.g. done with oil, grease or with a thin silicone cuff. Of course, other sealing means and methods are also conceivable.
  • the intermediate element 13 is inserted directly into a standard anode insulation element 3a. Consequently, this intermediate element 13 must be extended outwards in such a way (the extension 13a) that a standardized high-voltage plug 12 can again be used. Otherwise, the anode insulating member 3a may be made slightly wider to make room for the intermediate member 13. As a result, standardized high-voltage plug 12 can continue to be used.
  • Figures 6a and 6b respectively show the fourth and the fifth embodiment of the present invention.
  • the line structure 6, 7 is integrated in both cases as a groove or groove structure in the surface of the anode insulation element 3a facing the high voltage connector 12, wherein it is at least partially open to the outside.
  • the embodiment is shown in which the channels 6 and 7 are sealed directly through the surface of the high voltage connector 12.
  • thin-walled sealing means 13 can additionally be used, which seals the oil-carrying channels 6, 7 on one side and on the other side Leave the lead for the high voltage connector 12.
  • the channels 6, 7 are guided in a straight line or spiral. It is also possible to use several grooves in parallel.
  • the invention is not limited to the described embodiments. It will be readily apparent to one skilled in the art that further developments and modifications will be readily possible within the scope of the invention. Device elements can be replaced as needed by other elements that perform the same or similar functions. Also, additional facilities and elements may be provided.
  • the anode insulation element 3a may also have a cylindrical inner bore into which the high voltage connector 12 can then be inserted. The connection between the plug 12 and the ceramic 3a is made in this case, for example, by a flexible intermediate element 13, which conforms to the ceramic 3a. Due to the cylindrical shape in particular a constant contact pressure is ensured.
  • the flexible intermediate element 13 can advantageously be configured such that channels 6, 7 for the supply and removal of coolant arise, which run in a straight line or in a spiral shape between the high-voltage connector 12 and the ceramic anode insulation element 3 a. As a result, a maintenance-free high-voltage connector 12 can be realized.
  • these and many other measures and elements fall within the scope of the invention, which is defined by the following claims.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • X-Ray Techniques (AREA)

Abstract

La présente invention concerne un tube à rayons X haute tension (R), un espace intérieur (11) dans lequel a été établie une dépression, contenant, opposées entre elles, une cathode (8) aux bornes de laquelle est appliquée une haute tension négative lorsqu'elle se trouve à l'état de fonctionnement, et une anode (2) aux bornes de laquelle est appliquée une haute tension positive lorsqu'elle se trouve à l'état de fonctionnement. L'anode (2) est fixée à un élément d'isolation anodique (3a) de sorte que l'élément d'isolation anodique (3a) présente une forme cylindrique ou effilée en direction de l'anode (2) et présente une ouverture (6a) destinée à recevoir un connecteur haute tension (12), et une structure de conduites (6/7) sert à alimenter l'anode (2) en agent de refroidissement. Cet agent de refroidissement peut en particulier être de l'huile isolante ou un autre liquide électriquement non conducteur. La structure de conduites (6/7) peut par exemple être entièrement intégrée à l'intérieur de l'élément d'isolation anodique (3a), mais aussi à la surface du connecteur haute tension (12). Une autre possibilité est l'intégration de la structure de conduites (6/7) à un élément intermédiaire (13) qui se trouve entre l'élément d'isolation anodique (3a) et le connecteur haute tension (12).
EP07729972A 2007-06-06 2007-06-06 Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension Withdrawn EP2163142A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/055605 WO2008148426A1 (fr) 2007-06-06 2007-06-06 Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension

Publications (1)

Publication Number Publication Date
EP2163142A1 true EP2163142A1 (fr) 2010-03-17

Family

ID=38962657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07729972A Withdrawn EP2163142A1 (fr) 2007-06-06 2007-06-06 Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension

Country Status (3)

Country Link
US (1) US8090075B2 (fr)
EP (1) EP2163142A1 (fr)
WO (1) WO2008148426A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
US9208988B2 (en) 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
US8094784B2 (en) 2003-04-25 2012-01-10 Rapiscan Systems, Inc. X-ray sources
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
GB0816823D0 (en) * 2008-09-13 2008-10-22 Cxr Ltd X-ray tubes
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources
CN103635002B (zh) * 2012-08-21 2016-03-16 同方威视技术股份有限公司 一体式飞点x光机
WO2014133797A1 (fr) * 2013-02-14 2014-09-04 Golden Phillip Tube à rayons x
JP6230389B2 (ja) 2013-06-05 2017-11-15 キヤノン株式会社 Ｘ線発生管及びそれを用いたｘ線発生装置とｘ線撮影システム
CN103997839B (zh) * 2014-06-06 2018-03-30 同方威视技术股份有限公司 一种准直可调制的x射线发生器
DE102015213810B4 (de) * 2015-07-22 2021-11-25 Siemens Healthcare Gmbh Hochspannungszuführung für einen Röntgenstrahler
JP2019501493A (ja) * 2015-12-03 2019-01-17 ヴァレックス イメージング コーポレイション Ｘ線アセンブリ
JP6677420B2 (ja) * 2016-04-01 2020-04-08 キヤノン電子管デバイス株式会社 Ｘ線管装置
EP3416181A1 (fr) * 2017-06-15 2018-12-19 Koninklijke Philips N.V. Système à rayons x et procédé de fabrication d'une source de rayons x
EP3511972A1 (fr) * 2018-01-11 2019-07-17 Siemens Healthcare GmbH Dissipation de chaleur efficace sur un palier lisse d'une anode tournante
JP6543378B1 (ja) * 2018-04-12 2019-07-10 浜松ホトニクス株式会社 Ｘ線発生装置
JP7222880B2 (ja) * 2019-12-26 2023-02-15 キヤノン電子管デバイス株式会社 Ｘ線管梱包装置
DE102021209350B3 (de) 2021-08-25 2022-09-29 Incoatec Gmbh Röntgenröhre mit einem Isolationskörper, der einen Gusskörper umfasst

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL28917C (fr) 1928-05-27
DE674415C (de) 1931-03-01 1939-04-14 Koch & Sterzel Akt Ges Aus Isoliermaterial bestehendes Hochspannungsschutzgehaeuse fuer gekuehlte Vakuum-, insbesondere Roentgenroehren
US2067139A (en) 1934-12-01 1937-01-05 Westinghouse Electric & Mfg Co Shockproof X-ray apparatus
US3595614A (en) * 1969-11-21 1971-07-27 Olin Corp Amalgam decomposition
GB1272498A (en) 1969-12-03 1972-04-26 Philips Electronic Associated X-ray tube having a metal envelope

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008148426A1 *

Also Published As

Publication number Publication date
US20100111265A1 (en) 2010-05-06
US8090075B2 (en) 2012-01-03
WO2008148426A1 (fr) 2008-12-11

Similar Documents

Publication Publication Date Title
WO2008148426A1 (fr) Tube à rayons x comprenant un élément d'isolation anodique destiné à refroidir du liquide et à prendre en charge un connecteur haute tension
DE102006036233B4 (de) Freiluftendverschluss
DE19956491C2 (de) Röntgenstrahler mit zwangsgekühlter Drehanode
EP2136925B1 (fr) Dispositif de fragmentation électrodynamique d'échantillons
DE10317735B3 (de) Erdungsschalter mit einem bewegbaren Kontaktstück
EP3427276A1 (fr) Transformateur à passages de haute tension insérables
DE2934805C2 (de) Elektrische Hochspannungsdurchführung
EP3435493B1 (fr) Traversée de haute tension enfichable et installation haute tension comprenant un traversée de haute tension enfichable
DE102007044070A1 (de) Ionenbeschleunigeranordnung und dafür geeignete Hochspannungsisolatoranordnung
EP3504721B1 (fr) Raccord de traversée de transformateur mobile
WO2009006972A1 (fr) Dispositif de production d'un jet de plasma
DE102009007474B4 (de) Vakuumschaltröhre
DE102017105546A1 (de) Steckdose zur Aufnahme eines Steckers eines Hochspannungskabels für eine Mikrofokus-Röntgenröhre, Steckverbindung für ein Hochspannungskabel
DE102007022875A1 (de) Gehäuse für eine Vakuumschaltröhre und Vakuumschaltröhre
EP3386034B1 (fr) Fermeture d'extrémité pour un câble supraconducteur et procédé de montage d'une fermeture d'extrémité pour un câble supraconducteur
DE3029624C2 (fr)
DE102009017924B4 (de) Isolator für Röntgenröhren und Verwendung von zweiphasigem Aluminium-Nitrid als Isolator für Röntgenröhren
EP2927923A1 (fr) Interrupteur de charge de transformateur à sec
EP0446462A2 (fr) Lampe à décharge à haute pression
DE674415C (de) Aus Isoliermaterial bestehendes Hochspannungsschutzgehaeuse fuer gekuehlte Vakuum-, insbesondere Roentgenroehren
DE2233217A1 (de) Trommelbare kabellaenge eines gasisolierten hochspannungskabels
DE3210563C3 (de) Endverschluß für Hochspannungskabel verschiedenen Aufbaues
DE614378C (de) Roentgenanlage
WO2008110203A2 (fr) Lampe à décharge et procédé de fabrication d'une lampe à décharge
DE102019209871A1 (de) Schalteinrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091124

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17Q First examination report despatched

Effective date: 20100616

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111222