GB1225674A - - Google Patents

Info

Publication number
GB1225674A
GB1225674A GB1225674DA GB1225674A GB 1225674 A GB1225674 A GB 1225674A GB 1225674D A GB1225674D A GB 1225674DA GB 1225674 A GB1225674 A GB 1225674A
Authority
GB
United Kingdom
Prior art keywords
electrode
april
alternating voltage
ion source
frequency
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
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 FR101901A external-priority patent/FR1518219A/en
Application filed filed Critical
Publication of GB1225674A publication Critical patent/GB1225674A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J27/00—Ion beam tubes
    • H01J27/02—Ion sources; Ion guns
    • H01J27/16—Ion sources; Ion guns using high-frequency excitation, e.g. microwave excitation
    • 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

Abstract

1,225,674. Ion sources. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 April, 1968 [7 April, 1967], No.16198/68. Heading H1D. A high-frequency discharge ion source comprises a secondary-electron emitting electrode 1 and a mesh grid electrode 2, the electrode spacing and the amplitude and frequency of the alternating voltage applied across the electrodes being such that secondary electrons emitted by the electrode 1 return again to the electrode after one cycle of the alternating voltage. An extractor electrode 3 is supported on a quartz plate 4 and an accelerator electrode is shown at 5. The gas is a deuteriumtritium mixture at a pressure of 10<SP>-4</SP> Torr. The ion source may be used in a neutron generator. Suitable dimensions and voltages are given.
GB1225674D 1967-04-07 1968-04-04 Expired GB1225674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR101901A FR1518219A (en) 1966-04-09 1967-04-07 Device for recording and reproducing a color television signal

Publications (1)

Publication Number Publication Date
GB1225674A true GB1225674A (en) 1971-03-17

Family

ID=8628387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225674D Expired GB1225674A (en) 1967-04-07 1968-04-04

Country Status (4)

Country Link
US (1) US3532915A (en)
DE (1) DE1764098A1 (en)
GB (1) GB1225674A (en)
NL (1) NL6804401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550681A1 (en) * 1983-08-12 1985-02-15 Centre Nat Rech Scient ION SOURCE HAS AT LEAST TWO IONIZATION CHAMBERS, PARTICULARLY FOR THE FORMATION OF CHEMICALLY REACTIVE ION BEAMS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675145A (en) * 1984-08-16 1987-06-23 The United State Of America As Represented By The United States Department Of Energy Magnetically insulated diode for generating pulsed neutron and gamma ray emissions
US6441569B1 (en) 1998-12-09 2002-08-27 Edward F. Janzow Particle accelerator for inducing contained particle collisions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570124A (en) * 1949-10-20 1951-10-02 Rca Corp Positive ion beam gun
US2956192A (en) * 1959-01-02 1960-10-11 Eitel Mccullough Inc Gettering electron gun

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550681A1 (en) * 1983-08-12 1985-02-15 Centre Nat Rech Scient ION SOURCE HAS AT LEAST TWO IONIZATION CHAMBERS, PARTICULARLY FOR THE FORMATION OF CHEMICALLY REACTIVE ION BEAMS
GB2146836A (en) * 1983-08-12 1985-04-24 Centre Nat Rech Scient A source of ions with at least two ionization chambers, in particular for forming chemically reactive ion beams

Also Published As

Publication number Publication date
DE1764098A1 (en) 1971-04-22
US3532915A (en) 1970-10-06
NL6804401A (en) 1968-10-08

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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