FR2301903A1 - Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance - Google Patents

Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance

Info

Publication number
FR2301903A1
FR2301903A1 FR7505515A FR7505515A FR2301903A1 FR 2301903 A1 FR2301903 A1 FR 2301903A1 FR 7505515 A FR7505515 A FR 7505515A FR 7505515 A FR7505515 A FR 7505515A FR 2301903 A1 FR2301903 A1 FR 2301903A1
Authority
FR
France
Prior art keywords
impedance
fed
coil
electromagnets
parts
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.)
Granted
Application number
FR7505515A
Other languages
French (fr)
Other versions
FR2301903B1 (en
Inventor
Georges Faillon
Jean Hervier
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7505515A priority Critical patent/FR2301903A1/en
Publication of FR2301903A1 publication Critical patent/FR2301903A1/en
Application granted granted Critical
Publication of FR2301903B1 publication Critical patent/FR2301903B1/fr
Granted 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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H01F7/204—Circuits for energising or de-energising
    • 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
    • H01J23/005—Cooling methods or arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)

Abstract

Focussing coil for electric - magnets and associated with electron beam tubes. The design is intended to overcome the problem of modulation, high field intensity and the need for a common electrical power supply. The electro -magnets are basically fed from two separate coil windings. The first, of low impedance, provides 80% or 90% of the required field. The remaining coil has a high impedance and superimposes a variable field to make up that required. The two coils are in parallel and present a nominally constant impedance to the supply. The physical arrangement is such that main and auxiliary coils are alternated along the length of the focussing region, the main coils starting and finishing the sequence.
FR7505515A 1975-02-21 1975-02-21 Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance Granted FR2301903A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7505515A FR2301903A1 (en) 1975-02-21 1975-02-21 Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7505515A FR2301903A1 (en) 1975-02-21 1975-02-21 Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance

Publications (2)

Publication Number Publication Date
FR2301903A1 true FR2301903A1 (en) 1976-09-17
FR2301903B1 FR2301903B1 (en) 1979-08-03

Family

ID=9151567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505515A Granted FR2301903A1 (en) 1975-02-21 1975-02-21 Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance

Country Status (1)

Country Link
FR (1) FR2301903A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236149A1 (en) * 1992-10-27 1994-05-05 Kernforschungsz Karlsruhe Process for increasing and / or ensuring the efficiency of a gyrotron and gyrotron for carrying out the process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1477719A (en) * 1966-03-10 1967-04-21 Ministerul Ind Constructhlor D Single phase transformer for arc welding
GB1096921A (en) * 1963-03-28 1967-12-29 Nat Res Dev Radiation generators

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096921A (en) * 1963-03-28 1967-12-29 Nat Res Dev Radiation generators
FR1477719A (en) * 1966-03-10 1967-04-21 Ministerul Ind Constructhlor D Single phase transformer for arc welding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236149A1 (en) * 1992-10-27 1994-05-05 Kernforschungsz Karlsruhe Process for increasing and / or ensuring the efficiency of a gyrotron and gyrotron for carrying out the process
WO1994010699A1 (en) * 1992-10-27 1994-05-11 Kernforschungszentrum Karlsruhe Gmbh Method of increasing and/or ensuring the efficiency of a gyrotron, and a gyrotron designed to carry out the method
US5610482A (en) * 1992-10-27 1997-03-11 Forschungszentrum Karlsruhe Gmbh Gyrotron and method of improving its efficiency

Also Published As

Publication number Publication date
FR2301903B1 (en) 1979-08-03

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Legal Events

Date Code Title Description
ST Notification of lapse