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 impedanceInfo
- 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
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
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.
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)
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)
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 |
-
1975
- 1975-02-21 FR FR7505515A patent/FR2301903A1/en active Granted
Patent Citations (2)
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)
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 |