GB949521A - A slow-wave electron discharge device - Google Patents

A slow-wave electron discharge device

Info

Publication number
GB949521A
GB949521A GB2977161A GB2977161A GB949521A GB 949521 A GB949521 A GB 949521A GB 2977161 A GB2977161 A GB 2977161A GB 2977161 A GB2977161 A GB 2977161A GB 949521 A GB949521 A GB 949521A
Authority
GB
United Kingdom
Prior art keywords
delay line
cloverleaf
sets
sections
waveguide
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
Application number
GB2977161A
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB949521A publication Critical patent/GB949521A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
    • H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the forward travelling wave being utilised

Landscapes

  • Microwave Amplifiers (AREA)
  • Particle Accelerators (AREA)

Abstract

949,521. Travelling wave tubes. VARIAN ASSOCIATES. Aug. 17, 1961 [Sept. 16, 1960], No. 29771/61. Heading H1D. An electron discharge device, e.g. a travelling wave tube, has a cloverleaf delay line having an input and a waveguide output, the cloverleaf sections being inductively coupled to one another, the extent of the last two or more in the direction of the beam cloverleaf delay line sections decreasing progressively. The cloverleaf delay line sections are inductively coupled by sets of eight slots 29, alternate sets of slots being in alignment to give negative mutual inductive coupling between adjacent delay line sections. Screwed stubs 49, 55 serve for capacitive tuning and also assist in the impedance matching. The output waveguide 35 has a #/2 diameter coupling hole 27<SP>1</SP> to the delay line, and a #/2 reduced height part 34 broadening in two steps into the main waveguide part 35. The delay line has a central lossy section comprising annular plates 31, welded to 25. Two sets of four spaced carbonloaded ceramic discs 32 are brazed to plates 31 which have channels for cooling fluid. The collector 37 is also fluid cooled and is surrounded by an X-ray shield, and a getter pump 40 is attached. Magnetic focusing is achieved by a magnetic circuit having polepieces 13, 44 integral with the tube. The gun has a ceramic spacer 14 and aligning disc 15. The indirectly heated cathode filament is heated by pulses. The gun has a concave cathode button 19, two focusing electrodes 21 and an anode 23. Specification 847,472 is referred-to.
GB2977161A 1960-09-16 1961-08-17 A slow-wave electron discharge device Expired GB949521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5641560A 1960-09-16 1960-09-16

Publications (1)

Publication Number Publication Date
GB949521A true GB949521A (en) 1964-02-12

Family

ID=22004245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2977161A Expired GB949521A (en) 1960-09-16 1961-08-17 A slow-wave electron discharge device

Country Status (2)

Country Link
DE (1) DE1296272B (en)
GB (1) GB949521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126944A1 (en) * 1980-07-09 1982-04-01 Nippon Electric Co., Ltd., Tokyo HIKING FIELD TUBES WITH COUPLING CAVES
CN110098097A (en) * 2019-04-23 2019-08-06 东南大学 A kind of microwave and X-ray communication bimodulus device based on travelling-wave tubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934556A1 (en) * 1979-08-27 1981-03-12 Siemens AG, 1000 Berlin und 8000 München SLIDING PIPES, IN PARTICULAR HIGH-PERFORMANCE PIPING PIPES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB847472A (en) * 1955-09-26 1960-09-07 Varian Associates Improvements relating to electric discharge devices
US2952795A (en) * 1957-06-24 1960-09-13 Gen Electric Electron discharge device
US2985792A (en) * 1958-10-02 1961-05-23 Hughes Aircraft Co Periodically-focused traveling-wave tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126944A1 (en) * 1980-07-09 1982-04-01 Nippon Electric Co., Ltd., Tokyo HIKING FIELD TUBES WITH COUPLING CAVES
CN110098097A (en) * 2019-04-23 2019-08-06 东南大学 A kind of microwave and X-ray communication bimodulus device based on travelling-wave tubes

Also Published As

Publication number Publication date
DE1296272B (en) 1969-05-29

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