GB851606A - Apparatus for suppression of the multipactor effect - Google Patents

Apparatus for suppression of the multipactor effect

Info

Publication number
GB851606A
GB851606A GB3597756A GB3597756A GB851606A GB 851606 A GB851606 A GB 851606A GB 3597756 A GB3597756 A GB 3597756A GB 3597756 A GB3597756 A GB 3597756A GB 851606 A GB851606 A GB 851606A
Authority
GB
United Kingdom
Prior art keywords
entrant portions
effect
tube
opposed ends
drift tube
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
GB3597756A
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
Priority claimed from US562220A external-priority patent/US2939037A/en
Application filed by Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB851606A publication Critical patent/GB851606A/en
Expired 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

Landscapes

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

851,606. Velocity-modulated tubes. VARIAN ASSOCIATES. Nov. 23, 1956 [Jan. 30, 1956], No. 35977/56. Class 39(1). H.F. discharge apparatus, e.g. a Klystron tube, has a resonant cavity 7, Fig. 3, in which there is established an alternating electromagnetic field and having two tubular re-entrant portions 9, forming a drift tube 11, forming between their opposed ends a gap for interaction between a beam of charged particles, passed through the drift tube, and the field, wherein the opposed ends of the re-entrant portions are bevelled externally and the faces of the bevels are provided with grooves extending lengthwise of the re-entrant portions whereby the multifactor effect is eliminated or substantially reduced. The bevelling and grooving are sufficient to divide the opposed ends of the re-entrant portions 9 into a plurality of fingers. The drift tube 11 is circular and has a wallthickness exceeding half the radius of the tube. The reduction of the multipactor effect is explained with reference to Fig. 2, and it is stated that the effect is reduced when the width d of the ridges 5 is small compared with their spacing S, when the height h of the ridges 5 is great compared with the spacing w, and when d is small compared with w.
GB3597756A 1956-01-30 1956-11-23 Apparatus for suppression of the multipactor effect Expired GB851606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US562220A US2939037A (en) 1956-01-30 1956-01-30 Apparatus for suppression of multipactor

Publications (1)

Publication Number Publication Date
GB851606A true GB851606A (en) 1960-10-19

Family

ID=24245317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3597756A Expired GB851606A (en) 1956-01-30 1956-11-23 Apparatus for suppression of the multipactor effect

Country Status (1)

Country Link
GB (1) GB851606A (en)

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