GB916022A - Apparatus for producing intense energetic gas discharges - Google Patents

Apparatus for producing intense energetic gas discharges

Info

Publication number
GB916022A
GB916022A GB17693/59A GB1769359A GB916022A GB 916022 A GB916022 A GB 916022A GB 17693/59 A GB17693/59 A GB 17693/59A GB 1769359 A GB1769359 A GB 1769359A GB 916022 A GB916022 A GB 916022A
Authority
GB
United Kingdom
Prior art keywords
cathode
arc
anode
gas
baffles
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
GB17693/59A
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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of GB916022A publication Critical patent/GB916022A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J27/00—Ion beam tubes
    • H01J27/02—Ion sources; Ion guns
    • H01J27/08—Ion sources; Ion guns using arc discharge
    • H01J27/14—Other arc discharge ion sources using an applied magnetic field
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03H1/00—Using plasma to produce a reactive propulsive thrust
    • F03H1/0037—Electrostatic ion thrusters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/02—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma
    • H05H1/16—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma using externally-applied electric and magnetic fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S164/00—Metal founding
    • Y10S164/04—Dental

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

916,022. Discharge apparatus; ion sources. UNITED STATES ATOMIC ENERGY COMMISSION. May 25, 1959 [July 24, 1958], No. 17693/59. Class 39 (1). A high intensity energetic arc discharge is set up between a cathode and an elongated cup shaped anode and an axial magnetic field is maintained between the electrodes, feed, gas being supplied to the interior of both electrodes. The gas is preferably deuterium or tritium but may be air, hydrogen, argon, nitrogen or helium. There is complete ionisation of the feed gas within both cathode and anode and complete space charge neutralisation within or at the face of the cathode according as to whether the cathode is a hollow cup, Figs. 2-4 (not shown), or has merely an axial bore for the feed gas. The device may be a source of plasma or may replace the carbon arc in plasma-containment machines using dissociation of molecules, as in Specification 853,916. Alternatively positive ions accelerated towards the cathode, in the form of a collimated stream may be projected through an open end of the device to serve as propulsion means for a space vehicle, Figs. 3, 4 (not shown). The tungsten electrodes have thick copper jackets 3, 4 fitted with watercooling pipes 33. Floating cathode shields 5, 6 and a floating anode shield 7 are provided. Baffles 18, 19 are also floating, baffles 18 and 19 preventing recombined positive and negative ions respectively from flowing back to the arc and baffles 18 also trapping positive ions flowing towards the cathode. To start the arc the R.F. source 31 is switched on for the duration only of the starting interval. Alternatively a high D.C. potential is applied, or an auxiliary electrode adjacent the cathode is first made to touch it, then separated, then the auxiliary electrode is removed after striking. In Fig. 2 (not shown) the arc is a hollow cylinder, electrons being accelerated radially from the inside wall of the cathode. The arc is initiated at the facing tips of the cup anode and cathode after which the gas feed is reduced to make the discharge move inside the anode and cathode. In Fig. 3 (not shown) the hollow arc is enlarged at its central portion, the magnetic fields forming " mirrors " at each end. The cathode is supported by radial spokes.
GB17693/59A 1958-07-24 1959-05-25 Apparatus for producing intense energetic gas discharges Expired GB916022A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US750834A US2920235A (en) 1958-07-24 1958-07-24 Method and apparatus for producing intense energetic gas discharges

Publications (1)

Publication Number Publication Date
GB916022A true GB916022A (en) 1963-01-16

Family

ID=25019351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17693/59A Expired GB916022A (en) 1958-07-24 1959-05-25 Apparatus for producing intense energetic gas discharges

Country Status (3)

Country Link
US (1) US2920235A (en)
FR (1) FR1230972A (en)
GB (1) GB916022A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014857A (en) * 1958-09-02 1961-12-26 James D Gow Plasma device
LU38443A1 (en) * 1959-04-20
US3116433A (en) * 1959-06-15 1963-12-31 Giannini Controls Corp Production of neutral molecular beams
US3212974A (en) * 1959-06-23 1965-10-19 Csf Particle injecting device
US3024182A (en) * 1959-11-12 1962-03-06 Harold P Furth Plasma energization
US3005931A (en) * 1960-03-29 1961-10-24 Raphael A Dandl Ion gun
US3096269A (en) * 1961-05-23 1963-07-02 Halbach Klaus Counterrotating plasma device
US3293491A (en) * 1962-02-13 1966-12-20 Robert A Cornog Apparatus for producing charged particles
US3210518A (en) * 1962-12-21 1965-10-05 Alloyd Electronics Corp Hollow cathode device
JPS5724858B2 (en) * 1974-11-27 1982-05-26
US4601871A (en) * 1983-05-17 1986-07-22 The United States Of America As Represented By The United States Department Of Energy Steady state compact toroidal plasma production
US20030223528A1 (en) * 1995-06-16 2003-12-04 George Miley Electrostatic accelerated-recirculating-ion fusion neutron/proton source
GB0120280D0 (en) * 2001-08-21 2001-10-17 Sved John Low degradation rate linear geometry neutron generator appartus using plasma gas target
US6746566B1 (en) * 2001-12-11 2004-06-08 Kla-Tencor Technologies Corporation Transverse magnetic field voltage isolator
WO2010017185A1 (en) 2008-08-04 2010-02-11 Agc Flat Glass North America, Inc. Plasma source and methods for depositing thin film coatings using plasma enhanced chemical vapor deposition
EP3228161B1 (en) 2014-12-05 2021-11-03 AGC Flat Glass North America, Inc. Plasma source utilizing a macro-particle reduction coating and method of using a plasma source utilizing a macro-particle reduction coating for deposition of thin film coatings and modification of surfaces
BR112017011612A2 (en) 2014-12-05 2018-01-16 Agc Glass Europe, S.A hollow cathode plasma source
US9721765B2 (en) 2015-11-16 2017-08-01 Agc Flat Glass North America, Inc. Plasma device driven by multiple-phase alternating or pulsed electrical current
US10573499B2 (en) 2015-12-18 2020-02-25 Agc Flat Glass North America, Inc. Method of extracting and accelerating ions
JP2019501496A (en) * 2015-12-18 2019-01-17 エージーシー フラット グラス ノース アメリカ，インコーポレイテッドＡｇｃ Ｆｌａｔ Ｇｌａｓｓ Ｎｏｒｔｈ Ａｍｅｒｉｃａ，Ｉｎｃ． Holocathode ion source and method for extracting and accelerating ions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009555A (en) * 1927-03-29 1935-07-30 Mathiesen Wilhelm Means of changing the condition and the actinic qualities of open electric arc lights
US2294498A (en) * 1940-12-04 1942-09-01 United States Steel Corp Welding
US2728877A (en) * 1951-06-19 1955-12-27 Heinz F Fischer Apparatus for obtaining extremely high temperatures
US2819427A (en) * 1955-04-14 1958-01-07 Rauland Corp Light source
NL197973A (en) * 1955-05-10
US2826708A (en) * 1955-06-02 1958-03-11 Jr John S Foster Plasma generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR1230972A (en) 1960-09-21
US2920235A (en) 1960-01-05

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