JPS56102045A - Microwave electronic tube employing cyclotron resonance - Google Patents

Microwave electronic tube employing cyclotron resonance

Info

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
Application number
JP556580A
Other languages
Japanese (ja)
Inventor
Yutaka Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP556580A priority Critical patent/JPS56102045A/en
Publication of JPS56102045A publication Critical patent/JPS56102045A/en
Pending legal-status Critical Current

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.
JP556580A 1980-01-21 1980-01-21 Microwave electronic tube employing cyclotron resonance Pending JPS56102045A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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