GB953268A - Improvements in multi-cavity klystrons - Google Patents
Improvements in multi-cavity klystronsInfo
- Publication number
- GB953268A GB953268A GB21910/62A GB2191062A GB953268A GB 953268 A GB953268 A GB 953268A GB 21910/62 A GB21910/62 A GB 21910/62A GB 2191062 A GB2191062 A GB 2191062A GB 953268 A GB953268 A GB 953268A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- cavity resonators
- parts
- members
- permanent
- 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
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
- H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
- H01J25/12—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator with pencil-like electron stream in the axis of the resonators
-
- 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
- Particle Accelerators (AREA)
- Microwave Tubes (AREA)
Abstract
953,268. Velocity-modulated beam tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 6, 1962 [June 9, 1961], No. 21910/62. Heading H1D. A klystron, having more than two cavity resonators and having a magnetic focusing system arranged to provide a magnetic field the direction of which is repeatedly reversed along the electron beam, has drift tubes which comprise a plurality of short tubular parts 11 having cooling members 19 on their outer surfaces and spaced apart along the axis of the beam by cavity resonators 17, the focusing system comprising a plurality of permanent - magnet members 29 disposed outside the cooling members and connected by magnetic yokes 27 to polepieces 25 spaced along the outside of the drift tube, the spacing of the polepieces being such as to produce magnetic fields Ba within the parts of the drift tubes and to produce magnetic fields Bb of similar intensity but opposite direction within the portions of the cavity resonators which are between successive parts of the drift tubes. The magnetic members 29 each comprises two permanent-magnet discs secured to the yoke parts having arranged between them a movable permanent-magnet disc, the intensity of the magnetic field within the tube thus being controllable. The beam has a maximum diameter in the region of the cavity resonators.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP27312A DE1158183B (en) | 1961-06-09 | 1961-06-09 | Permanent magnetic focusing arrangement for a high-performance multi-chamber klystron |
Publications (1)
Publication Number | Publication Date |
---|---|
GB953268A true GB953268A (en) | 1964-03-25 |
Family
ID=7370781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21910/62A Expired GB953268A (en) | 1961-06-09 | 1962-06-06 | Improvements in multi-cavity klystrons |
Country Status (5)
Country | Link |
---|---|
US (1) | US3172008A (en) |
CH (1) | CH403093A (en) |
DE (1) | DE1158183B (en) |
GB (1) | GB953268A (en) |
NL (1) | NL279385A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366904A (en) * | 1965-12-14 | 1968-01-30 | Philips Corp | High-power multi-stage klystron with adjustable periodic magnetic focussing |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274430A (en) * | 1963-08-01 | 1966-09-20 | Massachusetts Inst Technology | Biased-gap klystron |
GB1164268A (en) * | 1966-12-13 | 1969-09-17 | Air Reduction | Improvements in or relating to Electron Beam Apparatus. |
DE3050257C1 (en) * | 1980-01-28 | 1984-10-04 | Sergej Sergeevič Drozdov | Alternating periodic magnetic focusing system |
US5378988A (en) * | 1993-01-22 | 1995-01-03 | Pulyer; Yuly M. | MRI system having high field strength open access magnet |
DE4328232A1 (en) * | 1993-08-21 | 1995-02-23 | Licentia Gmbh | Electron-beam tube (cathode-ray tube), in particular travelling-wave tube |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2940000A (en) * | 1954-07-26 | 1960-06-07 | Applied Radiation Corp | Linear electron accelerators |
NL221236A (en) * | 1956-10-01 | |||
US2993141A (en) * | 1958-02-10 | 1961-07-18 | Richard F Post | Producing bunched electron beams |
-
0
- NL NL279385D patent/NL279385A/xx unknown
-
1961
- 1961-06-09 DE DEP27312A patent/DE1158183B/en active Pending
-
1962
- 1962-06-06 US US200388A patent/US3172008A/en not_active Expired - Lifetime
- 1962-06-06 CH CH681162A patent/CH403093A/en unknown
- 1962-06-06 GB GB21910/62A patent/GB953268A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366904A (en) * | 1965-12-14 | 1968-01-30 | Philips Corp | High-power multi-stage klystron with adjustable periodic magnetic focussing |
Also Published As
Publication number | Publication date |
---|---|
DE1158183B (en) | 1963-11-28 |
US3172008A (en) | 1965-03-02 |
NL279385A (en) | |
CH403093A (en) | 1965-11-30 |
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