JPH0412581B2 - - Google Patents
Info
- Publication number
- JPH0412581B2 JPH0412581B2 JP15061484A JP15061484A JPH0412581B2 JP H0412581 B2 JPH0412581 B2 JP H0412581B2 JP 15061484 A JP15061484 A JP 15061484A JP 15061484 A JP15061484 A JP 15061484A JP H0412581 B2 JPH0412581 B2 JP H0412581B2
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- focusing device
- permanent magnet
- outer periphery
- pole piece
- 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
- 238000010894 electron beam technology Methods 0.000 claims description 24
- 239000000696 magnetic material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 5
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002834 transmittance 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
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
Landscapes
- Microwave Tubes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15061484A JPS6129039A (ja) | 1984-07-20 | 1984-07-20 | 電子ビ−ム集束装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15061484A JPS6129039A (ja) | 1984-07-20 | 1984-07-20 | 電子ビ−ム集束装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6129039A JPS6129039A (ja) | 1986-02-08 |
| JPH0412581B2 true JPH0412581B2 (en, 2012) | 1992-03-05 |
Family
ID=15500724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15061484A Granted JPS6129039A (ja) | 1984-07-20 | 1984-07-20 | 電子ビ−ム集束装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129039A (en, 2012) |
-
1984
- 1984-07-20 JP JP15061484A patent/JPS6129039A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6129039A (ja) | 1986-02-08 |
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