JPS56102045A - Microwave electronic tube employing cyclotron resonance - Google Patents
Microwave electronic tube employing cyclotron resonanceInfo
- Publication number
- JPS56102045A JPS56102045A JP556580A JP556580A JPS56102045A JP S56102045 A JPS56102045 A JP S56102045A JP 556580 A JP556580 A JP 556580A JP 556580 A JP556580 A JP 556580A JP S56102045 A JPS56102045 A JP S56102045A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic wave
- energy
- drift tube
- attenuator
- electron
- 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.)
- Pending
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
- H01J25/025—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 with an electron stream following a helical path
Landscapes
- Microwave Tubes (AREA)
Abstract
PURPOSE:To achieve a gyrotron which performs high output CW operation, by providing an attenuator for electromagnetic wave in an electron beam pass hole extending from an electron gun to the mutual operation area thereby weakening the energy of counter transmitting electromagnetic wave. CONSTITUTION:The electron reached to a drift tube 9 will pass through an open type resonator 11 while performing stable cyclotron motion due to the magnetic field produced by main coil 10. As an attenuator 18 Ni having high electric resistance is galvernized as shown by dashed line on the inner wall of said drift tube 9, while the graphite is coated as the absorber for the electromagnetic wave. Consequently the electromagnetic wave mode passing through the drift tube 9 is such that the high frequency current flowing through the wall face is converted to the joule heat to attenuate the energy of electromagnetic wave. As a result the energy of electromagnetic wave to be counter transmitted to the cathode 1 is considerably reduced resulting in higher output CW operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP556580A JPS56102045A (en) | 1980-01-21 | 1980-01-21 | Microwave electronic tube employing cyclotron resonance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP556580A JPS56102045A (en) | 1980-01-21 | 1980-01-21 | Microwave electronic tube employing cyclotron resonance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56102045A true JPS56102045A (en) | 1981-08-15 |
Family
ID=11614726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP556580A Pending JPS56102045A (en) | 1980-01-21 | 1980-01-21 | Microwave electronic tube employing cyclotron resonance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56102045A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057044U (en) * | 1983-09-27 | 1985-04-20 | 株式会社東芝 | microwave tube device |
JPH03192633A (en) * | 1989-12-21 | 1991-08-22 | Toshiba Corp | Gyrotron oscillation tube |
US5576679A (en) * | 1994-10-25 | 1996-11-19 | Shin-Etsu Chemical Co., Ltd. | Cylindrical permanent magnet unit suitable for gyrotron |
US5818170A (en) * | 1994-03-17 | 1998-10-06 | Mitsubishi Denki Kabushiki Kaisha | Gyrotron system having adjustable flux density |
CN104124124A (en) * | 2014-08-06 | 2014-10-29 | 中国科学院电子学研究所 | Coil magnetic focusing high-current electron beam transmission process simulative measurement system |
CN108475894A (en) * | 2015-12-30 | 2018-08-31 | 于利希研究中心 | CW masers with electromagnetic viscosimeter circuit |
-
1980
- 1980-01-21 JP JP556580A patent/JPS56102045A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057044U (en) * | 1983-09-27 | 1985-04-20 | 株式会社東芝 | microwave tube device |
JPH0228596Y2 (en) * | 1983-09-27 | 1990-07-31 | ||
JPH03192633A (en) * | 1989-12-21 | 1991-08-22 | Toshiba Corp | Gyrotron oscillation tube |
US5818170A (en) * | 1994-03-17 | 1998-10-06 | Mitsubishi Denki Kabushiki Kaisha | Gyrotron system having adjustable flux density |
US5576679A (en) * | 1994-10-25 | 1996-11-19 | Shin-Etsu Chemical Co., Ltd. | Cylindrical permanent magnet unit suitable for gyrotron |
CN104124124A (en) * | 2014-08-06 | 2014-10-29 | 中国科学院电子学研究所 | Coil magnetic focusing high-current electron beam transmission process simulative measurement system |
CN108475894A (en) * | 2015-12-30 | 2018-08-31 | 于利希研究中心 | CW masers with electromagnetic viscosimeter circuit |
CN108475894B (en) * | 2015-12-30 | 2020-02-14 | 于利希研究中心 | CW maser with electromagnetic oscillation circuit |
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