FR66813E - Thermionic or secondary emission cathodes - Google Patents
Thermionic or secondary emission cathodesInfo
- Publication number
- FR66813E FR66813E FR66813DA FR66813E FR 66813 E FR66813 E FR 66813E FR 66813D A FR66813D A FR 66813DA FR 66813 E FR66813 E FR 66813E
- Authority
- FR
- France
- Prior art keywords
- thermionic
- secondary emission
- emission cathodes
- cathodes
- emission
- 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
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
- H01J1/32—Secondary-electron-emitting electrodes
-
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2203753A GB741020A (en) | 1953-08-10 | 1953-08-10 | Improvements in or relating to thermionic and secondary emission cathodes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR66813E true FR66813E (en) | 1957-09-10 |
Family
ID=10172879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR66813D Expired FR66813E (en) | 1953-08-10 | 1954-08-05 | Thermionic or secondary emission cathodes |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR66813E (en) |
GB (1) | GB741020A (en) |
-
1953
- 1953-08-10 GB GB2203753A patent/GB741020A/en not_active Expired
-
1954
- 1954-08-05 FR FR66813D patent/FR66813E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB741020A (en) | 1955-11-23 |
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