JPH01150354U - - Google Patents
Info
- Publication number
- JPH01150354U JPH01150354U JP4707788U JP4707788U JPH01150354U JP H01150354 U JPH01150354 U JP H01150354U JP 4707788 U JP4707788 U JP 4707788U JP 4707788 U JP4707788 U JP 4707788U JP H01150354 U JPH01150354 U JP H01150354U
- Authority
- JP
- Japan
- Prior art keywords
- metal coating
- electron emission
- impregnated
- impregnated cathode
- electron
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910000929 Ru alloy Inorganic materials 0.000 claims 1
- 229910052741 iridium Inorganic materials 0.000 claims 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims 1
- GIDFDWJDIHKDMB-UHFFFAOYSA-N osmium ruthenium Chemical compound [Ru].[Os] GIDFDWJDIHKDMB-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Description
第１図は本考案の一実施例を使用したピアス型
電子銃の断面図、第２図は従来の含浸型陰極を使
用したピアス型電子銃の一例の断面図である。
１…Ｍタイプ含浸型陰極、２…陽極、３…ウエ
ーネルト電極、４…ヒータ、５…電子ビーム、６
…金属被膜、１１…Ｍタイプ浸型陰極、１５…電
子ビーム、１６…金属被膜。
FIG. 1 is a sectional view of a pierce-type electron gun using an embodiment of the present invention, and FIG. 2 is a sectional view of an example of a pierce-type electron gun using a conventional impregnated cathode. 1... M type impregnated cathode, 2... Anode, 3... Wehnelt electrode, 4... Heater, 5... Electron beam, 6
...metal coating, 11...M type immersion cathode, 15...electron beam, 16...metal coating.
Claims (1)
基体の電子放射作用を行う電子放射面にオスミウ
ム・ルテニウム合金被膜とイリジウム金属被膜と
のうちのいずれか１種類の金属被膜が形成された
含浸型陰極において、前記電子放射面を除いた部
分に形成された前記金属被膜が除去されているこ
とを特徴とする含浸型陰極。 An impregnated cathode in which a metal coating of one of an osmium-ruthenium alloy coating and an iridium metal coating is formed on the electron emission surface of a porous tungsten base impregnated with an electron emission substance that performs an electron emission function, An impregnated cathode, characterized in that the metal coating formed on a portion other than the electron emitting surface is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4707788U JPH01150354U (en) | 1988-04-06 | 1988-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4707788U JPH01150354U (en) | 1988-04-06 | 1988-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01150354U true JPH01150354U (en) | 1989-10-18 |
Family
ID=31273307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4707788U Pending JPH01150354U (en) | 1988-04-06 | 1988-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01150354U (en) |
-
1988
- 1988-04-06 JP JP4707788U patent/JPH01150354U/ja active Pending
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