GB2109157A - Electron tube and dispenser cathode with high emission impregnant - Google Patents
Electron tube and dispenser cathode with high emission impregnant Download PDFInfo
- Publication number
- GB2109157A GB2109157A GB08230872A GB8230872A GB2109157A GB 2109157 A GB2109157 A GB 2109157A GB 08230872 A GB08230872 A GB 08230872A GB 8230872 A GB8230872 A GB 8230872A GB 2109157 A GB2109157 A GB 2109157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- matrix
- cathode
- metal
- electron
- alkaline earth
- 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.)
- Withdrawn
Links
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 150000004645 aluminates Chemical class 0.000 claims abstract description 17
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 239000010937 tungsten Substances 0.000 claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002923 metal particle Substances 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 8
- 239000011733 molybdenum Substances 0.000 claims abstract description 8
- 229910000457 iridium oxide Inorganic materials 0.000 claims abstract description 4
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims abstract 9
- DYIZHKNUQPHNJY-UHFFFAOYSA-N oxorhenium Chemical class [Re]=O DYIZHKNUQPHNJY-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910003449 rhenium oxide Inorganic materials 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 230000002708 enhancing effect Effects 0.000 claims description 20
- 229910052741 iridium Inorganic materials 0.000 claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 12
- 150000004706 metal oxides Chemical group 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000010894 electron beam technology Methods 0.000 claims description 6
- -1 alkaline earth metal aluminate Chemical class 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 5
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims 3
- 239000007787 solid Substances 0.000 claims 3
- 239000011800 void material Substances 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 claims 2
- FQNGWRSKYZLJDK-UHFFFAOYSA-N [Ca].[Ba] Chemical compound [Ca].[Ba] FQNGWRSKYZLJDK-UHFFFAOYSA-N 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 239000000463 material Substances 0.000 description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 235000010216 calcium carbonate Nutrition 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229940125810 compound 20 Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- JAXFJECJQZDFJS-XHEPKHHKSA-N gtpl8555 Chemical compound OC(=O)C[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1CCC[C@@H]1C(=O)N[C@H](B1O[C@@]2(C)[C@H]3C[C@H](C3(C)C)C[C@H]2O1)CCC1=CC=C(F)C=C1 JAXFJECJQZDFJS-XHEPKHHKSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- H01J23/04—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Landscapes
- Solid Thermionic Cathode (AREA)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31624781A | 1981-10-29 | 1981-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2109157A true GB2109157A (en) | 1983-05-25 |
Family
ID=23228213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08230872A Withdrawn GB2109157A (en) | 1981-10-29 | 1982-10-28 | Electron tube and dispenser cathode with high emission impregnant |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5880235A (it) |
| DE (1) | DE3238817A1 (it) |
| FR (1) | FR2515869A1 (it) |
| GB (1) | GB2109157A (it) |
| IT (1) | IT1155407B (it) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262650A (en) * | 1991-12-20 | 1993-06-23 | Samsung Electronic Devices | Impregnated dispenser cathode and manufacture thereof. |
| FR3007192A1 (fr) * | 2013-06-14 | 2014-12-19 | Thales Sa | Canon electronique a optique amelioree |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU182187U1 (ru) * | 2018-01-09 | 2018-08-07 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Импрегнированный катод |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165473A (en) * | 1976-06-21 | 1979-08-21 | Varian Associates, Inc. | Electron tube with dispenser cathode |
| FR2469792A1 (fr) * | 1979-11-09 | 1981-05-22 | Thomson Csf | Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode |
-
1982
- 1982-10-20 DE DE19823238817 patent/DE3238817A1/de not_active Withdrawn
- 1982-10-25 JP JP57186232A patent/JPS5880235A/ja active Pending
- 1982-10-26 IT IT23938/82A patent/IT1155407B/it active
- 1982-10-28 GB GB08230872A patent/GB2109157A/en not_active Withdrawn
- 1982-10-29 FR FR8218208A patent/FR2515869A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262650A (en) * | 1991-12-20 | 1993-06-23 | Samsung Electronic Devices | Impregnated dispenser cathode and manufacture thereof. |
| FR3007192A1 (fr) * | 2013-06-14 | 2014-12-19 | Thales Sa | Canon electronique a optique amelioree |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5880235A (ja) | 1983-05-14 |
| IT1155407B (it) | 1987-01-28 |
| FR2515869A1 (fr) | 1983-05-06 |
| DE3238817A1 (de) | 1983-05-11 |
| IT8223938A0 (it) | 1982-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |