DE554719C - Electrodes for discharge vessels - Google Patents

Electrodes for discharge vessels

Info

Publication number
DE554719C
DE554719C DE1930554719D DE554719DD DE554719C DE 554719 C DE554719 C DE 554719C DE 1930554719 D DE1930554719 D DE 1930554719D DE 554719D D DE554719D D DE 554719DD DE 554719 C DE554719 C DE 554719C
Authority
DE
Germany
Prior art keywords
electrodes
copper
discharge vessels
beryllium
tubes
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
DE1930554719D
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.)
Siemens Reiniger Veifa Gesellschaft fuer Medizinische Technik mbH
Original Assignee
Siemens Reiniger Veifa Gesellschaft fuer Medizinische Technik mbH
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 Siemens Reiniger Veifa Gesellschaft fuer Medizinische Technik mbH filed Critical Siemens Reiniger Veifa Gesellschaft fuer Medizinische Technik mbH
Application granted granted Critical
Publication of DE554719C publication Critical patent/DE554719C/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
    • H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • 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

Landscapes

  • Discharge Lamp (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Description

Elektroden für Entladungsgefäße Die Elektroden, insbesondere Anoden von Röntgenröhren, Ventilröhren und anderen Entladungsröhren werden vielfach aus Kupfer hergestellt, insbesondere dann, wenn eine Kühlung der Elektroden erforderlich ist. Elektroden aus reinem Kupfer haben die unerwünschte Eigenschaft, leicht deformierbar zu sein. Die bisher verwendeten härtenden Zusätze zum Anodenmetäll verschlechterten die vakuumtechnischen Eigenschaften der-Entladungsröhren.Electrodes for discharge vessels The electrodes, especially anodes of X-ray tubes, valve tubes and other discharge tubes are being used in many cases Made of copper, especially when cooling of the electrodes is required is. Pure copper electrodes have the undesirable property of being easily deformed to be. The previously used hardening additives to the anode metal deteriorated the vacuum properties of the discharge tubes.

Gemäß der Erfindung wird hier eine wesentliche Verbesserung dadurch erzielt, daß dem Kupfer eine verhältnismäßig kleine Menge (etwa i bis 5 °1o) Beryllium zugesetzt wird, das die Härte des Kupfers erheblich vergrößert, ohne die übrigen hier in Frage kommenden Eigenschaften des Kupfers zu beeinflussen. Glühkathodenröhren mit einer Anode aus Kupfer und Beryllium haben außerdem, wie Versuche ergehen haben, die Eigenschaft, daß die Emission der Glühkathode konstanter ist als bei Verwendung von Anoden aus reinem Kupfer,. was vermutlich damit zusammenhängt, daß durch das Beryllium Gasreste unschädlich gemacht werden, die eine die Elektronenemission herabsetzende Wirkung auf den Glühdraht herbeiführen können.According to the invention, this provides a substantial improvement here achieved that the copper a relatively small amount (about 1 to 5 ° 1o) beryllium is added, which increases the hardness of the copper considerably, without the rest to influence the properties of the copper in question here. Hot cathode tubes With an anode made of copper and beryllium, experiments have also shown that the property that the emission of the hot cathode is more constant than when it is used of pure copper anodes. which is probably related to the fact that the Beryllium gas residues are rendered harmless, which reduce the electron emission Can cause an effect on the filament.

Claims (1)

PATENTANSPRÜCHE: i. In elektrischen Entladungsröhren, insbesondere Glühkathodenröhren, Elektroden aus Kupfer mit geringem Zusatz von Beryllium. z. Elektroden nach Anspruch i, gekennzeichnet durch einen Berylliumzusatz von i bis 5 °/o. PATENT CLAIMS: i. In electrical discharge tubes, especially hot cathode tubes, electrodes made of copper with a small addition of beryllium. z. Electrodes according to Claim i, characterized by an addition of beryllium of 1 to 5%.
DE1930554719D 1930-06-17 1930-06-17 Electrodes for discharge vessels Expired DE554719C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE554719T 1930-06-17

Publications (1)

Publication Number Publication Date
DE554719C true DE554719C (en) 1932-07-12

Family

ID=6564185

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930554719D Expired DE554719C (en) 1930-06-17 1930-06-17 Electrodes for discharge vessels

Country Status (1)

Country Link
DE (1) DE554719C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE889812C (en) * 1941-03-14 1953-09-14 Telefunken Gmbh Incandescent cathode for electric discharge tubes
DE893234C (en) * 1938-05-28 1953-10-15 Telefunken Gmbh Metallic components used inside high-vacuum electrical discharge vessels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893234C (en) * 1938-05-28 1953-10-15 Telefunken Gmbh Metallic components used inside high-vacuum electrical discharge vessels
DE889812C (en) * 1941-03-14 1953-09-14 Telefunken Gmbh Incandescent cathode for electric discharge tubes

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