GB1020606A - Improvements in or relating to crossed-field electron tubes - Google Patents

Improvements in or relating to crossed-field electron tubes

Info

Publication number
GB1020606A
GB1020606A GB31170/64A GB3117064A GB1020606A GB 1020606 A GB1020606 A GB 1020606A GB 31170/64 A GB31170/64 A GB 31170/64A GB 3117064 A GB3117064 A GB 3117064A GB 1020606 A GB1020606 A GB 1020606A
Authority
GB
United Kingdom
Prior art keywords
layer
delay line
refractory
aug
electrode
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
GB31170/64A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB1020606A publication Critical patent/GB1020606A/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
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field
    • 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

Landscapes

  • Microwave Tubes (AREA)
  • Resistance Heating (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

1,020,606. Travelling wave tubes; electrode materials. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FILS . Aug. 4, 1964 [Aug. 6, 1963], No. 31170/64. Heading H1D. A crossed field travelling wave tube has a delay line 3 secured to an insulating base 2 and a metallic sole electrode 4 (not shown) facing the delay line, wherein the surface of the sole electrode facing the delay line is coated with a refractory layer 5 (not shown) having low electrical conductivity at least on its surface. The refractory layer may be composed of a metal-ceramic mixture, e.g. a substance of the " cermet " type or a layer of refractory insulating material covered with a superficial layer of slightly conducting material such as a colloidal suspension of graphite in water. Alternatively, the insulating layer may be porous e.g. of alumina, which is then impregnated with colloidal graphite highly diluted in water or heated under pressure in an oven in a methane atmosphere, the carbon derived from the decomposition of the methane penetrating the pores. An aluminium layer may also cover the sole electrode of e.g. copper, which may be formed into a micro-porous alumina layer 1 micron thick by anodic oxidation.
GB31170/64A 1963-08-06 1964-08-04 Improvements in or relating to crossed-field electron tubes Expired GB1020606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR943878A FR1373112A (en) 1963-08-06 1963-08-06 Improvements to cross-field tubes, in particular those whose delay circuit is fixed on an insulating base

Publications (1)

Publication Number Publication Date
GB1020606A true GB1020606A (en) 1966-02-23

Family

ID=8809992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31170/64A Expired GB1020606A (en) 1963-08-06 1964-08-04 Improvements in or relating to crossed-field electron tubes

Country Status (4)

Country Link
US (1) US3374389A (en)
DE (1) DE1263935B (en)
FR (1) FR1373112A (en)
GB (1) GB1020606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153138A (en) * 1984-01-19 1985-08-14 Beswick Kenneth E Ltd Surge voltage arrestors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475707A (en) * 1966-12-21 1969-10-28 Varian Associates Porous intermediate layer for affixing lossy coatings to r.f. tube circuits
US3504223A (en) * 1967-09-07 1970-03-31 Litton Precision Prod Inc High power wide band cross field amplifier with ceramic supported helix
US3947342A (en) * 1973-08-06 1976-03-30 Hughes Aircraft Company Method of forming a composite electrode
US3963955A (en) * 1974-04-15 1976-06-15 Varian Associates Means and method for suppressing oscillations in electron guns
US5280218A (en) * 1991-09-24 1994-01-18 Raytheon Company Electrodes with primary and secondary emitters for use in cross-field tubes
EP1767503A1 (en) * 2005-09-22 2007-03-28 Saint-Gobain Revetex S.r.l. Foamed glass granules for reinforcing structures in general, process for manufacturing said granules and structure reinforced with the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652513A (en) * 1948-12-11 1953-09-15 Bell Telephone Labor Inc Microwave amplifier
US2942140A (en) * 1956-06-25 1960-06-21 Csf Travelling wave tubes with crossed electric and magnetic fields

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153138A (en) * 1984-01-19 1985-08-14 Beswick Kenneth E Ltd Surge voltage arrestors

Also Published As

Publication number Publication date
FR1373112A (en) 1964-09-25
US3374389A (en) 1968-03-19
DE1263935B (en) 1968-03-21

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