GB983640A - Improvements in or relating to electron guns - Google Patents

Improvements in or relating to electron guns

Info

Publication number
GB983640A
GB983640A GB1632/62A GB163262A GB983640A GB 983640 A GB983640 A GB 983640A GB 1632/62 A GB1632/62 A GB 1632/62A GB 163262 A GB163262 A GB 163262A GB 983640 A GB983640 A GB 983640A
Authority
GB
United Kingdom
Prior art keywords
block
delay line
cathode
waveguide
sale
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
GB1632/62A
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.)
DONALD WILLIAM WARD
MO Valve Co Ltd
Original Assignee
DONALD WILLIAM WARD
MO Valve 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 DONALD WILLIAM WARD, MO Valve Co Ltd filed Critical DONALD WILLIAM WARD
Priority to GB1632/62A priority Critical patent/GB983640A/en
Priority to US249259A priority patent/US3271609A/en
Priority to FR921649A priority patent/FR1344706A/en
Publication of GB983640A publication Critical patent/GB983640A/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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/06—Electron or ion guns
    • H01J23/075—Magnetron injection guns
    • 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
    • H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field

Landscapes

  • Microwave Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

983,640. Travelling wave tubes. M-O VALVE CO. Ltd., A. REDDISH, and D. W. WARD. Dec. 31, 1962 [Jan. 16, 1962], No. 1632/62. Heading H1D. A crossed field electron gun has the electron emitting space arranged convergently with either a straight or curved geometry. The gun comprises in an evacuated envelope (not shown) a delay line 1, a sale 2 and an electron gun constituted by an indirectly heated cathode 3 and a plate 4. The delay line has a pair of copper combs secured to one face of a copper block having teeth 5, 6 intercolated with each other. The delay line is provided with an output connector in the form of a waveguide. At its other end the waveguide is provided with a reflectionless termination. The sole is constructed from molybdenum strip insulated from the block 8 and is spaced from the line by a space through which an electron beam flows. The cathode 3 is in the form of a tubular block 16 of porous sintered tungsten having disposed within it a heater 18. The block has metal foil on three sides except the emissive surface 21 which is co-planar with the sale 2. The plate 4 is of tantalum strip and is arranged convergently and projecting beyond the cathode block. Sideways escape of the electrons is prevented by metal strips 24. The tube is disposed between the poles of a permanent magnet (not shown).
GB1632/62A 1962-01-16 1962-01-16 Improvements in or relating to electron guns Expired GB983640A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1632/62A GB983640A (en) 1962-01-16 1962-01-16 Improvements in or relating to electron guns
US249259A US3271609A (en) 1962-01-16 1963-01-03 Electron guns
FR921649A FR1344706A (en) 1962-01-16 1963-01-16 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1632/62A GB983640A (en) 1962-01-16 1962-01-16 Improvements in or relating to electron guns

Publications (1)

Publication Number Publication Date
GB983640A true GB983640A (en) 1965-02-17

Family

ID=9725303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1632/62A Expired GB983640A (en) 1962-01-16 1962-01-16 Improvements in or relating to electron guns

Country Status (3)

Country Link
US (1) US3271609A (en)
FR (1) FR1344706A (en)
GB (1) GB983640A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1023290A (en) * 1950-08-12 1953-03-16 Csf Improvements to electron beam focusing devices
US2976454A (en) * 1958-04-08 1961-03-21 Gen Electric High frequency energy interchange device
NL258231A (en) * 1959-12-18
US3071709A (en) * 1960-02-10 1963-01-01 Raytheon Co Traveling wave electrical discharge device

Also Published As

Publication number Publication date
US3271609A (en) 1966-09-06
FR1344706A (en) 1963-11-29

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