DE373216C - High vacuum x-ray tube - Google Patents

High vacuum x-ray tube

Info

Publication number
DE373216C
DE373216C DEV17499D DEV0017499D DE373216C DE 373216 C DE373216 C DE 373216C DE V17499 D DEV17499 D DE V17499D DE V0017499 D DEV0017499 D DE V0017499D DE 373216 C DE373216 C DE 373216C
Authority
DE
Germany
Prior art keywords
anode
high vacuum
ray tube
tube
evacuation
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.)
Expired
Application number
DEV17499D
Other languages
German (de)
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.)
VEIFA WERKE AKT GES
Original Assignee
VEIFA WERKE AKT GES
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 VEIFA WERKE AKT GES filed Critical VEIFA WERKE AKT GES
Priority to DEV17499D priority Critical patent/DE373216C/en
Application granted granted Critical
Publication of DE373216C publication Critical patent/DE373216C/en
Expired 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
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/112—Non-rotating anodes

Landscapes

  • X-Ray Techniques (AREA)

Description

Hochvakuum-Röntgenröhre. Unter dem Einfluß der elektrischen Entladung tritt in Hochvakuum-Röntgenröhren die Erscheinung auf, daß die Anode, welche der guten Wärmeableitung wegen aus Kupfer oder ähnlichen Metallen gemacht ist, zerstäubt. Dadurch entsteht auf der Röhrenwandung ein metallischer Belag, so daß sie teilweise leitend und der Gefahr der Zerstörung ausgesetzt wird.High vacuum x-ray tube. Under the influence of the electrical discharge occurs in high vacuum X-ray tubes that the anode, which the is made of copper or similar metals because of good heat dissipation, atomized. This creates a metallic coating on the tube wall so that it is partially conductive and exposed to the risk of destruction.

Es ist vorgeschlagen worden, zur Verhinderung der Zerstäubung der Anode diese mit einem Glaszylinder zu umkleiden. Das hat aber den Nachteil, daß dadurch die Evakuation der Hochvakuumröhre erschwert oder gar verhindert wird.It has been suggested to prevent atomization of the Anode to cover this with a glass cylinder. But that has the disadvantage that this makes the evacuation of the high vacuum tube difficult or even prevented.

Gemäß vorliegender Erfindung wird die Anode mit einem fest anhaftenden Überzug aus einem solchen Material versehen, welches durch Kathodenstrahlen nur wenig zerstäubt wird und einen Durchtritt von Gasteilen aus der Anode heim Evakuieren nicht verhindert. Derartige Materialien sind beispielsweise die Leichtmetalle, deren diesbezügliche Eigenschaften bekannt sind, oder auch Emaillen. Wesentlich ist für den Überzug, daß derselbe fest auf der Anode oder ihrer Halterung aufsitzt, daß er unter dem Einfluß der Kathodenstrahlen wenig zerstäubt und daß beim Evakuieren der Röhre und dem damit verbundenen Glühen der Anode das in der Anode enthaltene Gas frei austreten kann. Diejenige Fläche der Anode, von welcher die Röntgenstrahlen ausgehen, bleibt von dem Überzug frei. Der Schutzüberzug ist wesentlich für alle diejenigen Teile der Anode, welche innerhalb der hochevakuierten Röhre den Spannungseinflüssen unterworfen sind.According to the present invention, the anode is firmly adhered with a Coating made of such a material, which by cathode rays only is little atomized and a passage of gas parts from the anode home evacuation not prevented. Such materials are, for example, the light metals, their related properties are known, or also enamels. Is essential for the coating that it is firmly seated on the anode or its holder, that it is little atomized under the influence of the cathode rays and that during evacuation the tube and the associated glow of the anode contained in the anode Gas can escape freely. That area of the anode from which the X-rays go out remains free of the coating. The protective cover is essential for everyone those parts of the anode which are exposed to voltage within the highly evacuated tube are subject.

Claims (1)

PATENT-ANsPRÜcHE: i. Hochvakuum-Röntgenröhre, dadurch gekennzeichnet, daß die Anode innig mit einer Schicht eines durch Kathodenstrahlen nur wenig zerstäubbaren Materials überzogen ist, welches einen Durchtritt von Gasteilen aus der Anode während der Evakuierung der Röhre nicht verhindert. z. Hochvakuum-Röntgenröhre nach Anspruch r, dadurch gekennzeichnet, daß die Anode mit einem Emailleüberzug versehen ist.PATENT CLAIMS: i. High vacuum X-ray tube, characterized in that that the anode intimately with a layer of a sputterable by cathode rays only slightly Material is coated, which during a passage of gas parts from the anode does not prevent the evacuation of the tube. z. High vacuum X-ray tube according to claim r, characterized in that the anode is provided with an enamel coating.
DEV17499D 1922-06-09 1922-06-09 High vacuum x-ray tube Expired DE373216C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV17499D DE373216C (en) 1922-06-09 1922-06-09 High vacuum x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV17499D DE373216C (en) 1922-06-09 1922-06-09 High vacuum x-ray tube

Publications (1)

Publication Number Publication Date
DE373216C true DE373216C (en) 1923-04-09

Family

ID=7576403

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV17499D Expired DE373216C (en) 1922-06-09 1922-06-09 High vacuum x-ray tube

Country Status (1)

Country Link
DE (1) DE373216C (en)

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