GB646430A - Improvements in electronic tubes with velocity modulation - Google Patents
Improvements in electronic tubes with velocity modulationInfo
- Publication number
- GB646430A GB646430A GB13131/47A GB1313147A GB646430A GB 646430 A GB646430 A GB 646430A GB 13131/47 A GB13131/47 A GB 13131/47A GB 1313147 A GB1313147 A GB 1313147A GB 646430 A GB646430 A GB 646430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- cavity resonator
- grids
- emission
- velocity
- 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
- H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
- H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection
Landscapes
- Particle Accelerators (AREA)
Abstract
646,430. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 15, 1947, No. 13131. Convention date, May 15, 1946. [Class 39 (i)] In a reflex velocity-modulated tube, the beam from the cathode K passes across a gap in the cavity resonator C formed by a pair of grids AB, and then impacts a secondary emission electrode P, the emission from which passes into a space A<SP>1</SP> B<SP>1</SP> of the cavity resonator which is not in coincidence with the space formed by the grids A, B. As shown, the primary and secondary electron beams are reflected by an electrode R. The electrodes K, Rand P are coaxial of the annular cavity resonator C. The secondary electrode P may be cooled. There may be several stages of electron multiplication, either on solid surfaces arranged in cascade or on a network of grids. In a modification the reflector electrode R is replaced by a secondary emission electrode, and additional electrodes may be provided for focusing the stream of secondary electrons. The cavity resonator may have two non-contiguous re-entrant parts where the electrons traverse the resonator. The Specification as open to inspection under Sect. 91 comprises also arrangements not involving secondary emission. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR928183T | 1946-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB646430A true GB646430A (en) | 1950-11-22 |
Family
ID=9441575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13131/47A Expired GB646430A (en) | 1946-05-15 | 1947-05-15 | Improvements in electronic tubes with velocity modulation |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH261492A (en) |
| FR (1) | FR928183A (en) |
| GB (1) | GB646430A (en) |
-
1946
- 1946-05-15 FR FR928183D patent/FR928183A/en not_active Expired
-
1947
- 1947-04-23 CH CH261492D patent/CH261492A/en unknown
- 1947-05-15 GB GB13131/47A patent/GB646430A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH261492A (en) | 1949-05-15 |
| FR928183A (en) | 1947-11-20 |
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