SE302802B - - Google Patents
Info
- Publication number
- SE302802B SE302802B SE1826/62A SE182662A SE302802B SE 302802 B SE302802 B SE 302802B SE 1826/62 A SE1826/62 A SE 1826/62A SE 182662 A SE182662 A SE 182662A SE 302802 B SE302802 B SE 302802B
- Authority
- SE
- Sweden
Links
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES72657A DE1291022B (de) | 1961-02-22 | 1961-02-22 | Permanentmagnetsystem zur Erzeugung eines Magnetfeldes fuer die gebuendelte Fuehrung eines Elektronenstrahls ueber eine groessere Wegstrecke, insbesondere fuer Laufzeitroehren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE302802B true SE302802B (de) | 1968-08-05 |
Family
ID=7503362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1826/62A SE302802B (de) | 1961-02-22 | 1962-02-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3182234A (de) |
| DE (1) | DE1291022B (de) |
| NL (2) | NL274681A (de) |
| SE (1) | SE302802B (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3334264A (en) * | 1963-07-01 | 1967-08-01 | Gen Electric | Beam focusing magnet system |
| US3283200A (en) * | 1963-12-12 | 1966-11-01 | Varian Associates | High frequency electron discharge device having improved permanent magnetic focusing |
| US4578663A (en) * | 1984-11-29 | 1986-03-25 | Lockheed Missiles & Space Company, Inc. | Magnetic assembly |
| US4654618A (en) * | 1986-05-01 | 1987-03-31 | The United States Of America As Represented By The Secretary Of The Army | Confinement of kOe magnetic fields to very small areas in miniature devices |
| US4658228A (en) * | 1986-05-01 | 1987-04-14 | The United States Of America As Represented By The Secreatry Of The Army | Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets |
| US5055812A (en) * | 1990-09-24 | 1991-10-08 | The United States Of America As Represented By The Secretary Of The Army. | Compensation for magnetic nonuniformities of permanent magnet structures |
| US5744910A (en) * | 1993-04-02 | 1998-04-28 | Litton Systems, Inc. | Periodic permanent magnet focusing system for electron beam |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE521065A (de) * | 1952-07-01 | |||
| FR1114606A (fr) * | 1954-11-18 | 1956-04-16 | Csf | Perfectionnements aux aimants permanents |
| FR1251199A (fr) * | 1960-03-17 | 1961-01-13 | Gen Precision Inc | Perfectionnements aux dispositifs de concentration magnétique pour tubes électroniques et analogues |
-
0
- NL NL130846D patent/NL130846C/xx active
- NL NL274681D patent/NL274681A/xx unknown
-
1961
- 1961-02-22 DE DES72657A patent/DE1291022B/de active Pending
- 1961-10-30 US US148655A patent/US3182234A/en not_active Expired - Lifetime
-
1962
- 1962-02-20 SE SE1826/62A patent/SE302802B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL274681A (de) | |
| DE1291022B (de) | 1969-03-20 |
| NL130846C (de) | |
| US3182234A (en) | 1965-05-04 |