Title:
LINEAR ELECTRON BEAM TUBE CONSTITUTIONAL BODY
Document Type and Number:
Japanese Patent JP3614478
Kind Code:
B2
Abstract:
PURPOSE: To provide an improved linear electron beam tube constitutional body.
CONSTITUTION: An induction output quadrupole tube is provided with a cylindrical ceramic envelope body 1 and an electron gun comprising a cathode 2 and a grid 3 is installed in the envelope. A resonance input cavity surrounds the envelope body 1, is installed adjacently to the electron gun, provides a modulated electric field to the cathode-grid region, and generates the density modulation of the electron beam. The cavity 7 is connected with two metal cylinders 10, 14 adjacently arranged directly in the outside face of the envelope body 1. The metal parts 12, 15 installed in the envelope body 1 are extended coaxially with the cylinders 10, 14 and a material of the envelope body 1 is placed between them. Those parts work as a high frequency choke to lessen the high frequency loss. Tuning of the resonance cavity is carried out by adjusting a tuning member 8 and the member 8 is positioned at a point parted from the cathode-grid region at 1/4 of he wavelength of the resonance frequency.
Inventors:
Timothy Allen Crompton
Application Number:
JP27239994A
Publication Date:
January 26, 2005
Filing Date:
November 07, 1994
Export Citation:
Assignee:
E2V Technologies (UK) Limited
International Classes:
H01J23/54; H01J23/12; H01J23/15; H01J23/20; H01J23/207; H01J23/38; H01J25/04; (IPC1-7): H01J23/15; H01J23/12; H01J23/20
Domestic Patent References:
| JP582034A | ||||
| JP582035A | ||||
| JP5925148A | ||||
| JP6070635A | ||||
| JP609033A |
Foreign References:
| US3708764 | ||||
| US5317233 |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo