FR2272484B3 - - Google Patents

Info

Publication number
FR2272484B3
FR2272484B3 FR7515464A FR7515464A FR2272484B3 FR 2272484 B3 FR2272484 B3 FR 2272484B3 FR 7515464 A FR7515464 A FR 7515464A FR 7515464 A FR7515464 A FR 7515464A FR 2272484 B3 FR2272484 B3 FR 2272484B3
Authority
FR
France
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
FR7515464A
Other languages
French (fr)
Other versions
FR2272484A1 (en
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2272484A1 publication Critical patent/FR2272484A1/fr
Application granted granted Critical
Publication of FR2272484B3 publication Critical patent/FR2272484B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind
FR7515464A 1974-05-20 1975-05-16 Electron discharge equipment with beryllium oxide on electrode - in non-emitting zone, preventing stray electron emission Granted FR2272484A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47141874A 1974-05-20 1974-05-20

Publications (2)

Publication Number Publication Date
FR2272484A1 FR2272484A1 (en) 1975-12-19
FR2272484B3 true FR2272484B3 (ref) 1976-12-10

Family

ID=23871563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7515464A Granted FR2272484A1 (en) 1974-05-20 1975-05-16 Electron discharge equipment with beryllium oxide on electrode - in non-emitting zone, preventing stray electron emission

Country Status (5)

Country Link
JP (1) JPS5133550A (ref)
DE (1) DE2521732A1 (ref)
FR (1) FR2272484A1 (ref)
IL (1) IL47231A0 (ref)
IT (1) IT1038290B (ref)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927850C3 (de) * 1979-07-10 1982-03-18 Siemens AG, 1000 Berlin und 8000 München Elektronenvervielfacher
NL8900821A (nl) * 1989-04-04 1990-11-01 Philips Nv Beeldweergave-inrichting en beeldbuis.

Also Published As

Publication number Publication date
FR2272484A1 (en) 1975-12-19
IT1038290B (it) 1979-11-20
DE2521732A1 (de) 1975-12-04
JPS5133550A (en) 1976-03-22
IL47231A0 (en) 1975-07-28

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Legal Events

Date Code Title Description
ST Notification of lapse