GB1020606A - Improvements in or relating to crossed-field electron tubes - Google Patents
Improvements in or relating to crossed-field electron tubesInfo
- 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
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910002804 graphite Inorganic materials 0.000 abstract 2
- 239000010439 graphite Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000011195 cermet Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000007772 electrode material Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
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.
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)
| 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)
| 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)
| 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 |
-
1963
- 1963-08-06 FR FR943878A patent/FR1373112A/en not_active Expired
-
1964
- 1964-07-20 US US383634A patent/US3374389A/en not_active Expired - Lifetime
- 1964-07-28 DE DEC33512A patent/DE1263935B/en active Pending
- 1964-08-04 GB GB31170/64A patent/GB1020606A/en not_active Expired
Cited By (1)
| 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 |
| DE1263935B (en) | 1968-03-21 |
| US3374389A (en) | 1968-03-19 |
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