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FR623953A - Incandescent cathode for discharge tubes - Google Patents

Incandescent cathode for discharge tubes

Info

Publication number
FR623953A
FR623953A FR623953DA FR623953A FR 623953 A FR623953 A FR 623953A FR 623953D A FR623953D A FR 623953DA FR 623953 A FR623953 A FR 623953A
Authority
FR
France
Prior art keywords
discharge tubes
incandescent cathode
incandescent
cathode
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
Other languages
French (fr)
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 FR623953A publication Critical patent/FR623953A/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
    • H01J35/06—Cathodes
    • H01J35/066—Details of electron optical components, e.g. cathode cups
FR623953D 1925-11-02 1926-10-30 Incandescent cathode for discharge tubes Expired FR623953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE623953X 1925-11-02

Publications (1)

Publication Number Publication Date
FR623953A true FR623953A (en) 1927-07-05

Family

ID=6577923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623953D Expired FR623953A (en) 1925-11-02 1926-10-30 Incandescent cathode for discharge tubes

Country Status (2)

Country Link
FR (1) FR623953A (en)
NL (1) NL21136C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424518A (en) * 1944-12-04 1947-07-22 Gen Electric Coil electrode
FR2699326A1 (en) * 1992-12-11 1994-06-17 Gen Electric Cgr Bifocal cathode for X=ray tube e.g. in medical X=ray scanner - has central tungsten filament with other two filaments symmetrically placed, and whole structure situated inside metallic piece which focuses beam
NL1038404A (en) * 2007-11-19 2010-12-30 Varian Medical Systems Filament assembly having reduced electron beam time constant.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424518A (en) * 1944-12-04 1947-07-22 Gen Electric Coil electrode
FR2699326A1 (en) * 1992-12-11 1994-06-17 Gen Electric Cgr Bifocal cathode for X=ray tube e.g. in medical X=ray scanner - has central tungsten filament with other two filaments symmetrically placed, and whole structure situated inside metallic piece which focuses beam
NL1038404A (en) * 2007-11-19 2010-12-30 Varian Medical Systems Filament assembly having reduced electron beam time constant.

Also Published As

Publication number Publication date
NL21136C (en)

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