GB660107A - Improvements in or relating to electron velocity modulation discharge devices - Google Patents
Improvements in or relating to electron velocity modulation discharge devicesInfo
- Publication number
- GB660107A GB660107A GB25063/47A GB2506347A GB660107A GB 660107 A GB660107 A GB 660107A GB 25063/47 A GB25063/47 A GB 25063/47A GB 2506347 A GB2506347 A GB 2506347A GB 660107 A GB660107 A GB 660107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gap
- drift tube
- catcher
- buncher
- pear
- 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
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
-
- 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
Landscapes
- Particle Accelerators (AREA)
- Microwave Tubes (AREA)
Abstract
660,107. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 12, 1947 [Sept. 22, 1945], No. 25063/47. Class 39 (i). Velocity - modulation apparatus comprises electrostatic means for projecting a convergent beam of electrons through a buncher gap, a drift tube, and a catcher gap, the gaps being formed in separate resonators 6, 7, Fig. 1, or in a single coaxial line resonator 20, Fig. 2, the beam converging to a cross-over at the second gap 5 or 26 and the drift tube 4 or 2 being conical, Fig. 1, or pear-shaped, Fig. 2, such that the drift tube is narrower at the catcher gap than at the buncher gap. The capacity of the catcher gap is thus less than the capacity of the buncher gap. In Fig. 1 the beam 3 is annular and is focused by cylinder 2. In Fig. 2 the pear-shaped drift tube 21 forms the central conductor of the coaxial line resonator and is carried from the outer wall 20 by members 27. The drift tubes need not be of circular cross-section. Specification 580,081 is referred to. The Specification as open to inspection under Sect. 91 states that the annular cathode 1 of Fig. 1 has a low emission coefficient but a large surface area to give the required total emission; its life is consequently longer than that of a small cathode with a high emission co-efficient. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR660107X | 1945-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB660107A true GB660107A (en) | 1951-10-31 |
Family
ID=9010053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25063/47A Expired GB660107A (en) | 1945-09-22 | 1947-09-12 | Improvements in or relating to electron velocity modulation discharge devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2498673A (en) |
| FR (1) | FR961000A (en) |
| GB (1) | GB660107A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2680209A (en) * | 1950-05-12 | 1954-06-01 | Sperry Corp | High-frequency apparatus |
| US2888599A (en) * | 1953-10-05 | 1959-05-26 | Varian Associates | Electron discharge apparatus |
| FR1147407A (en) * | 1953-10-05 | 1957-11-25 | Varian Associates | Electron discharge device |
| DE1121741B (en) * | 1955-11-19 | 1962-01-11 | Varian Associates | Run-time tube |
| US3458750A (en) * | 1966-01-12 | 1969-07-29 | Servodyne Corp | Klystron tube having feedback means and a control lens |
| FR2191253B1 (en) * | 1972-06-27 | 1978-03-03 | Thomson Csf |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL41683C (en) * | 1932-05-14 | |||
| FR851943A (en) * | 1938-01-22 | 1940-01-18 | ||
| US2261130A (en) * | 1938-06-21 | 1941-11-04 | Univ Leland Stanford Junior | High frequency radio apparatus |
| US2406370A (en) * | 1938-07-08 | 1946-08-27 | Univ Leland Stanford Junior | Electronic oscillator-detector |
| US2408216A (en) * | 1942-03-06 | 1946-09-24 | Rca Corp | Beam deflection electron discharge device |
| US2444434A (en) * | 1943-01-22 | 1948-07-06 | Sperry Corp | Velocity modulation discharge tube apparatus |
| US2422695A (en) * | 1943-05-07 | 1947-06-24 | Bell Telephone Labor Inc | Suppression of parasitic oscillations in high-frequency devices |
-
0
- FR FR961000D patent/FR961000A/fr not_active Expired
-
1947
- 1947-05-21 US US749513A patent/US2498673A/en not_active Expired - Lifetime
- 1947-09-12 GB GB25063/47A patent/GB660107A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR961000A (en) | 1950-04-28 |
| US2498673A (en) | 1950-02-28 |
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