GB822906A - Improvements in or relating to method and means for electron acceleration - Google Patents

Improvements in or relating to method and means for electron acceleration

Info

Publication number
GB822906A
GB822906A GB2448/56A GB244856A GB822906A GB 822906 A GB822906 A GB 822906A GB 2448/56 A GB2448/56 A GB 2448/56A GB 244856 A GB244856 A GB 244856A GB 822906 A GB822906 A GB 822906A
Authority
GB
United Kingdom
Prior art keywords
coupler
phase
velocity
wave
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.)
Expired
Application number
GB2448/56A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB822906A publication Critical patent/GB822906A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H9/00—Linear accelerators
    • H05H9/02—Travelling-wave linear accelerators

Abstract

822,906. Linear particle accelerators ; velocity-modulated tubes. POST, R. F. Jan. 25, 1956 [Feb. 8, 1955], No. 2448/56. Class 39(1). [Also in Group XL(b)] In a travelling-wave linear electron accelerator, electron bunches produced in a velocitymodulated tube such as a klystron 11, Fig. 1, are injected into the accelerator 13 through a combined electron collector and beam and radiation coupler 22, the phase relationship between the bunched beam and the waves passing through the coupler being so adjusted that only selected bunches are accelerated. The discrimination is preferably in favour of those electrons 180 degrees out of phase with the driven oscillations in the output cavity 21 of the klystron and which attain twice the voltage of the rest of the beam electrons. The cylindrical member 23 of coupler 22 is supported by quarter-wave stubs and has a flared end for collecting a large portion of the electron beam. The member 23 has a narrow opening for collimating the electrons which do pass through. The wave velocity is greater than the beam velocity so that the waves advance in phase. In Fig. 2, 'the coupler is constructed so that a fundamental coaxial mode transforms into a waveguide mode with a phase velocity greater than that of light over the centre portion of the coupler and then back into a coaxial mode. The centre portion has a wall 32 so as to set up a circumferential mode. Small vertical posts 33 ensure matching between the coaxial and waveguide modes. In Fig. 4, the phase of the waves is retarded with respect to the beam by means of fins 36 which provide a slow-wave structure.
GB2448/56A 1955-02-08 1956-01-25 Improvements in or relating to method and means for electron acceleration Expired GB822906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US486865A US2940001A (en) 1955-02-08 1955-02-08 Electron accelerator

Publications (1)

Publication Number Publication Date
GB822906A true GB822906A (en) 1959-11-04

Family

ID=23933506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2448/56A Expired GB822906A (en) 1955-02-08 1956-01-25 Improvements in or relating to method and means for electron acceleration

Country Status (3)

Country Link
US (1) US2940001A (en)
DE (1) DE1117794B (en)
GB (1) GB822906A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238585B (en) * 1962-07-12 1967-04-13 Ass Elect Ind Electron gun
GB2186736A (en) * 1986-02-13 1987-08-19 Marconi Co Ltd Ion beam arrangement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322568A (en) * 1963-03-15 1967-05-30 Interchem Corp Composition and method for producing leather substitute
FR2110799A5 (en) * 1970-10-30 1972-06-02 Thomson Csf
US4350927A (en) * 1980-05-23 1982-09-21 The United States Of America As Represented By The United States Department Of Energy Means for the focusing and acceleration of parallel beams of charged particles
US10804001B1 (en) * 2019-04-24 2020-10-13 Euclid Technlabs, LLC Broad band tunable energy electron beam pulser
US10515733B1 (en) * 2019-04-24 2019-12-24 Euclid Techlabs, Llc Broad band tunable energy electron beam pulser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR943147A (en) * 1947-02-26 1949-02-28 Materiel Telephonique Very wideband amplifier tube for microwave frequencies
US2647219A (en) * 1947-11-15 1953-07-28 Int Standard Electric Corp Catcher circuits for velocity modulation tubes
US2630544A (en) * 1948-03-20 1953-03-03 Philco Corp Traveling wave electronic tube
US2653271A (en) * 1949-02-05 1953-09-22 Sperry Corp High-frequency apparatus
US2595698A (en) * 1949-05-10 1952-05-06 Rca Corp Electron discharge device and associated circuit
GB751353A (en) * 1953-04-14 1956-06-27 Vickers Electrical Co Ltd Improvements relating to linear accelerators for charged particles
US2813996A (en) * 1954-12-16 1957-11-19 Univ Leland Stanford Junior Bunching means for particle accelerators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238585B (en) * 1962-07-12 1967-04-13 Ass Elect Ind Electron gun
GB2186736A (en) * 1986-02-13 1987-08-19 Marconi Co Ltd Ion beam arrangement

Also Published As

Publication number Publication date
DE1117794B (en) 1961-11-23
US2940001A (en) 1960-06-07

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