GB795566A - Improvements in or relating to thermionic dispenser cathodes - Google Patents
Improvements in or relating to thermionic dispenser cathodesInfo
- Publication number
- GB795566A GB795566A GB3626/56A GB362656A GB795566A GB 795566 A GB795566 A GB 795566A GB 3626/56 A GB3626/56 A GB 3626/56A GB 362656 A GB362656 A GB 362656A GB 795566 A GB795566 A GB 795566A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- materials
- feb
- given
- refractory metal
- 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
- 239000000463 material Substances 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 2
- 239000003870 refractory metal Substances 0.000 abstract 2
- 229910011255 B2O3 Inorganic materials 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011876 fused mixture Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US345082XA | 1955-02-09 | 1955-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB795566A true GB795566A (en) | 1958-05-28 |
Family
ID=21876846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3626/56A Expired GB795566A (en) | 1955-02-09 | 1956-02-06 | Improvements in or relating to thermionic dispenser cathodes |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE545032A (enrdf_load_stackoverflow) |
| CH (1) | CH345082A (enrdf_load_stackoverflow) |
| DE (1) | DE1160552B (enrdf_load_stackoverflow) |
| FR (1) | FR1140832A (enrdf_load_stackoverflow) |
| GB (1) | GB795566A (enrdf_load_stackoverflow) |
| NL (1) | NL99051C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004424A1 (en) * | 1978-03-23 | 1979-10-03 | Thorn Emi-Varian Limited | Thermionic cathode |
| DE3122950A1 (de) * | 1981-06-10 | 1983-01-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum herstellen einer vorratskathode |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL91132C (enrdf_load_stackoverflow) * | 1951-11-29 |
-
0
- NL NL99051D patent/NL99051C/xx active
- BE BE545032D patent/BE545032A/xx unknown
-
1956
- 1956-02-04 DE DEN11801A patent/DE1160552B/de active Pending
- 1956-02-06 GB GB3626/56A patent/GB795566A/en not_active Expired
- 1956-02-07 FR FR1140832D patent/FR1140832A/fr not_active Expired
- 1956-02-07 CH CH345082D patent/CH345082A/de unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004424A1 (en) * | 1978-03-23 | 1979-10-03 | Thorn Emi-Varian Limited | Thermionic cathode |
| DE3122950A1 (de) * | 1981-06-10 | 1983-01-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum herstellen einer vorratskathode |
Also Published As
| Publication number | Publication date |
|---|---|
| CH345082A (de) | 1960-03-15 |
| NL99051C (enrdf_load_stackoverflow) | |
| FR1140832A (fr) | 1957-08-14 |
| BE545032A (enrdf_load_stackoverflow) | |
| DE1160552B (de) | 1964-01-02 |
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