GB1389985A - High power beam tube containing fieldshaping probe - Google Patents

High power beam tube containing fieldshaping probe

Info

Publication number
GB1389985A
GB1389985A GB3796373A GB3796373A GB1389985A GB 1389985 A GB1389985 A GB 1389985A GB 3796373 A GB3796373 A GB 3796373A GB 3796373 A GB3796373 A GB 3796373A GB 1389985 A GB1389985 A GB 1389985A
Authority
GB
United Kingdom
Prior art keywords
probe
mouth
cavity
aug
cathode
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
GB3796373A
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 GB1389985A publication Critical patent/GB1389985A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/027—Collectors

Abstract

1389985 Thermionic valves VARIAN ASSOCIATES 10 Aug 1973 [24 Aug 1972] 37963/73 Heading H1D A linear beam tetrode switch tube comprises a concave thermionic cathode 6; a centrally apertured anode 4 and a collector electrode 5 having a cavity 17 with a constricted mouth for inhibiting egress of electrons; a tapered probe 20 in the cavity and focusing means 21 at the mouth of the cavity maintain a laminar electron flow of uniform current density in the mouth. The tube includes a Pierce type gun with a spherical dimpled cathode 6, a focusing electrode 8 and shadow and control grids 9, 6 with their apertures aligned with the dimples. The probe is conical and air, water or oil cooled; it may be insulated from and at a different potential from the collector and may be coated or grooved to inhibit secondary electron emission.
GB3796373A 1972-08-24 1973-08-10 High power beam tube containing fieldshaping probe Expired GB1389985A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28343172A 1972-08-24 1972-08-24

Publications (1)

Publication Number Publication Date
GB1389985A true GB1389985A (en) 1975-04-09

Family

ID=23086030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3796373A Expired GB1389985A (en) 1972-08-24 1973-08-10 High power beam tube containing fieldshaping probe

Country Status (7)

Country Link
US (1) US3780336A (en)
JP (1) JPS5720656B2 (en)
CA (1) CA999332A (en)
DE (1) DE2341503A1 (en)
FR (1) FR2197228B1 (en)
GB (1) GB1389985A (en)
IL (1) IL42924A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2355902C2 (en) * 1973-11-08 1975-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electron beam catcher for a cathode ray tube
DE2740227A1 (en) * 1977-09-07 1979-03-15 Schwerionenforsch Gmbh FARADAY CUP FOR MEASURING THE RAY FLOWS FROM A HEAVY ION ACCELERATOR
US4593259A (en) * 1983-07-27 1986-06-03 Varian Associates, Inc. Waveguide load having reflecting structure for diverting microwaves into absorbing fluid
US5025193A (en) * 1987-01-27 1991-06-18 Varian Associates, Inc. Beam collector with low electrical leakage
DE4211756A1 (en) * 1992-04-08 1993-10-14 Licentia Gmbh Electron beam tube for travelling wave tube or klystron - has electrode surrounding indentation and base section supporting indentation forming final collector stage
GB9311419D0 (en) * 1993-06-03 1993-07-28 Eev Ltd Electron beam tubes
US6429589B2 (en) 1999-04-16 2002-08-06 Northrop Grumman Corporation Oil-cooled multi-staged depressed collector having channels and dual sleeves
US6601641B1 (en) * 2000-03-31 2003-08-05 Thomcast Communications, Inc. Oil cooled multistage depressed collector high power amplifier
US6838829B2 (en) * 2002-01-03 2005-01-04 Calabatas Creek Research, Inc. Depressed collector for electron beams
FR2854728B1 (en) * 2003-05-06 2005-07-29 Thales Sa HYPERFREQUENCY TUBE WITH LOW PARASITIC RADIATION
US8872057B2 (en) * 2006-03-15 2014-10-28 Communications & Power Industries Llc Liquid cooling system for linear beam device electrodes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958804A (en) * 1958-05-19 1960-11-01 Eitel Mccullough Inc Electron beam tube and circuit
NL266512A (en) * 1960-09-20
US3368102A (en) * 1965-06-09 1968-02-06 Sperry Rand Corp Collector structure operating at a depressed potential for collecting a hollow electron beam
DE1541078B2 (en) * 1966-07-08 1975-01-02 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Cathode ray tube with collecting electrode
US3453482A (en) * 1966-12-22 1969-07-01 Varian Associates Efficient high power beam tube employing a fly-trap beam collector having a focus electrode structure at the mouth thereof
FR1533674A (en) * 1967-08-04 1968-07-19 Siemens Ag Electron collector for electron beam tubes
US3644778A (en) * 1969-10-23 1972-02-22 Gen Electric Reflex depressed collector

Also Published As

Publication number Publication date
FR2197228B1 (en) 1978-09-08
DE2341503A1 (en) 1974-03-07
FR2197228A1 (en) 1974-03-22
CA999332A (en) 1976-11-02
US3780336A (en) 1973-12-18
IL42924A0 (en) 1973-11-28
IL42924A (en) 1976-02-29
JPS49134264A (en) 1974-12-24
JPS5720656B2 (en) 1982-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee