JPS642352U - - Google Patents
Info
- Publication number
- JPS642352U JPS642352U JP9658487U JP9658487U JPS642352U JP S642352 U JPS642352 U JP S642352U JP 9658487 U JP9658487 U JP 9658487U JP 9658487 U JP9658487 U JP 9658487U JP S642352 U JPS642352 U JP S642352U
- Authority
- JP
- Japan
- Prior art keywords
- electron gun
- filament
- field emission
- group
- emission type
- 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
- 238000001179 sorption measurement Methods 0.000 claims description 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658487U JPS642352U (de) | 1987-06-25 | 1987-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9658487U JPS642352U (de) | 1987-06-25 | 1987-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642352U true JPS642352U (de) | 1989-01-09 |
Family
ID=30962478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9658487U Pending JPS642352U (de) | 1987-06-25 | 1987-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642352U (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023203755A1 (ja) * | 2022-04-22 | 2023-10-26 | 株式会社日立ハイテク | 荷電粒子線装置 |
-
1987
- 1987-06-25 JP JP9658487U patent/JPS642352U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023203755A1 (ja) * | 2022-04-22 | 2023-10-26 | 株式会社日立ハイテク | 荷電粒子線装置 |