GB1196233A - High-Vacuum Electronic Discharge Tube provided with a Getter Ion Pump - Google Patents

High-Vacuum Electronic Discharge Tube provided with a Getter Ion Pump

Info

Publication number
GB1196233A
GB1196233A GB9965/69A GB996569A GB1196233A GB 1196233 A GB1196233 A GB 1196233A GB 9965/69 A GB9965/69 A GB 9965/69A GB 996569 A GB996569 A GB 996569A GB 1196233 A GB1196233 A GB 1196233A
Authority
GB
United Kingdom
Prior art keywords
columns
pump
ion pump
magnetic field
discharge 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
GB9965/69A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1196233A publication Critical patent/GB1196233A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

1,196,233. Ion pumps; transit-time tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 Feb., 1969 [28 Feb., 1968], No. 9965/69. Heading H1D. In a discharge tube having a magnetic field provided by a plurality of columns of permanent magnets situated outside the tube envelope, a getter ion pump is arranged in one of the columns, so as to be cut by the magnetic field. In the klystron shown, the ion pump 10 is mounted in one of four symmetrically arranged columns (Fig. 2, not shown) of permanent magnets 6 having pole plates 5 and pole shoes 8 mounted on the drift tube 1. The pump is connected to the drift tube by a pipe 11, on either side of which cooling fins 12 are arranged. Either a second pump, or as shown, a non- magnetic or soft magnetic disc 9 of the same size as the ion pump 10, is included in a symmetrically disposed column of magnets, to maintain uniformity of the magnetic field. In another embodiment (Figs. 3 and 4, not shown), the arrangement is applied to a magnetron having a pair of magnet columns.
GB9965/69A 1968-02-28 1969-02-25 High-Vacuum Electronic Discharge Tube provided with a Getter Ion Pump Expired GB1196233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681639370 DE1639370A1 (en) 1968-02-28 1968-02-28 High vacuum electron tube with ion getter pump

Publications (1)

Publication Number Publication Date
GB1196233A true GB1196233A (en) 1970-06-24

Family

ID=5684000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9965/69A Expired GB1196233A (en) 1968-02-28 1969-02-25 High-Vacuum Electronic Discharge Tube provided with a Getter Ion Pump

Country Status (4)

Country Link
US (1) US3588563A (en)
DE (1) DE1639370A1 (en)
FR (1) FR2002826A1 (en)
GB (1) GB1196233A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794879A (en) * 1972-10-24 1974-02-26 Raytheon Co Microwave magnetron
US4167370A (en) * 1976-11-01 1979-09-11 Massachusetts Institute Of Technology Method of an apparatus for self-sustaining high vacuum in a high voltage environment
JPS6351037A (en) * 1986-08-20 1988-03-04 Toshiba Corp Anode chamber of electron beam device
US5655886A (en) * 1995-06-06 1997-08-12 Color Planar Displays, Inc. Vacuum maintenance device for high vacuum chambers
IT1295340B1 (en) * 1997-10-15 1999-05-12 Getters Spa HIGH SPEED GAS ABSORPTION GETTER PUMP
WO2012177900A1 (en) 2011-06-22 2012-12-27 Research Triangle Institute, International Bipolar microelectronic device

Also Published As

Publication number Publication date
DE1639370A1 (en) 1971-02-04
FR2002826A1 (en) 1969-10-31
US3588563A (en) 1971-06-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees