GB1189715A - Improvements in or relating to Ion Gettering Pumps for Velocity-Modulated Tubes. - Google Patents

Improvements in or relating to Ion Gettering Pumps for Velocity-Modulated Tubes.

Info

Publication number
GB1189715A
GB1189715A GB36318/67A GB3631867A GB1189715A GB 1189715 A GB1189715 A GB 1189715A GB 36318/67 A GB36318/67 A GB 36318/67A GB 3631867 A GB3631867 A GB 3631867A GB 1189715 A GB1189715 A GB 1189715A
Authority
GB
United Kingdom
Prior art keywords
collector
velocity
ion
modulated
aug
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
GB36318/67A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1189715A publication Critical patent/GB1189715A/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
    • H01J23/027—Collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
    • H01J41/16—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes using gettering substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
    • H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,189,715. Velocity-modulated tubes; ion pumps. SIEMENS A.G. 8 Aug., 1967 [9 Aug., 1966], No. 36318/67. Heading H1D. In a velocity-modulated tube having a magnetically focused electron beam 1 and a collector 2 which is magnetically shielded-as shown, by iron cylinder 3-an ion getter pump is formed by the ionizing action of the beam 1 in the interaction region of the tube, and an ion trap formed by a metal plate electrode 4 of atomizable gettering material mounted within but insulated from the collector, and carrying at least one pointed pin extending parallel to, and symmetrically with respect to, the collector axis. The electrode 4 may be of titanium, is preferably held at cathode potential, and supports a single central pin for the case of a hollow electron beam, or, as shown, a plurality of off-axis pins 6 for a solid beam. The atomized gettering material is deposited upon the inner surface of the collector 2. Plate 4 may be insulated from the collector by glass bands or a ceramic ring.
GB36318/67A 1966-08-09 1967-08-08 Improvements in or relating to Ion Gettering Pumps for Velocity-Modulated Tubes. Expired GB1189715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0105270 1966-08-09

Publications (1)

Publication Number Publication Date
GB1189715A true GB1189715A (en) 1970-04-29

Family

ID=7526440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36318/67A Expired GB1189715A (en) 1966-08-09 1967-08-08 Improvements in or relating to Ion Gettering Pumps for Velocity-Modulated Tubes.

Country Status (5)

Country Link
US (1) US3475650A (en)
DE (1) DE1541052B1 (en)
FR (1) FR1533787A (en)
GB (1) GB1189715A (en)
NL (1) NL6707059A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085376A (en) * 1976-09-27 1978-04-18 Abramyan Evgeny A Device for electrical deceleration of flow of charged particles
US10665437B2 (en) * 2015-02-10 2020-05-26 Hamilton Sundstrand Corporation System and method for enhanced ion pump lifespan

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963605A (en) * 1954-11-04 1960-12-06 Varian Associates Ion draining structures
GB918602A (en) * 1959-11-16 1963-02-13 Mullard Ltd Electron-beam tubes
US3328628A (en) * 1961-11-27 1967-06-27 Nippon Electric Co Electron tube employing a relatively long electron beam and getter material disposedat the collector
FR1448548A (en) * 1964-10-01 1966-01-28 Varian Associates High-frequency electronic discharge device comprising an asymmetric, self-polarized ion drain electrode
US3368102A (en) * 1965-06-09 1968-02-06 Sperry Rand Corp Collector structure operating at a depressed potential for collecting a hollow electron beam

Also Published As

Publication number Publication date
US3475650A (en) 1969-10-28
FR1533787A (en) 1968-07-19
DE1541052B1 (en) 1971-11-18
NL6707059A (en) 1968-02-12

Similar Documents

Publication Publication Date Title
GB747755A (en) Improvements in electrode structures for beam discharge devices
GB642083A (en) Improvements relating to cathode ray tubes
GB1178406A (en) Electron Gun Including an Ion Trap.
GB431246A (en) Improvements in or relating to braun tubes
GB1269173A (en) Hot-cathode ionization gauges
GB940480A (en) Electron discharge device
GB542496A (en) Improvements in or relating to electron discharge devices
GB1189715A (en) Improvements in or relating to Ion Gettering Pumps for Velocity-Modulated Tubes.
GB981743A (en) Improvements in electron guns
GB1357469A (en) Electron-beam generators for transit-time electron discharge tubes
GB1336126A (en) Ion gauges
GB1039884A (en) Improvements in or relating to gettering arrangements in velocity modulated electrontubes
GB1247501A (en) Ion-getter vacuum pump
GB804697A (en) Improvements in x-ray tubes
GB1013622A (en) Improvements in electron-beam tubes and electron guns for use therein
GB613145A (en) Improvements in or relating to electric discharge tubes
GB1152757A (en) Improvements in and relating to Ion Sources for Mass Spectrometers
GB889947A (en) Ionization gauge for the measurement of low pressures
GB1182725A (en) Vacuum Pumps Employing Ion Beams
GB889018A (en) Improvements relating to the stabilisation of low pressure d.c. arc discharges
GB728900A (en) Improvements in or relating to electron gun structures for use in cathode ray tubes
GB1398167A (en) High pressure ion sources
GB995180A (en) Improvements in and relating to the evaporation of material for the coating of surfaces by electronic bombardment
GB1018504A (en) An arrangement for the production of neutron pulses
GB1219044A (en) Improvements in and relating to ionisation manometers

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee