GB834996A - Improvements in internal magnetic deflection system for electron beam generator - Google Patents
Improvements in internal magnetic deflection system for electron beam generatorInfo
- Publication number
- GB834996A GB834996A GB34306/58A GB3430658A GB834996A GB 834996 A GB834996 A GB 834996A GB 34306/58 A GB34306/58 A GB 34306/58A GB 3430658 A GB3430658 A GB 3430658A GB 834996 A GB834996 A GB 834996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- conductors
- generator
- electron beam
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J33/00—Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/08—Deviation, concentration or focusing of the beam by electric or magnetic means
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Electron Sources, Ion Sources (AREA)
- Electron Beam Exposure (AREA)
- Particle Accelerators (AREA)
Abstract
834,996. Electron beam deflecting apparatus. GENERAL ELECTRIC CO. Oct. 27, 1958 [Oct. 29, 1957], No. 34306/58. Class 39(1). An electron-beam generator, which may be used in the irradiation of materials, includes a longitudinal deflection system comprising two serially-connected opposed conductors mounted in an extension chamber of the generator on opposite sides of or parallel to the axis of this chamber. Preferably, the generator also includes a principal transverse deflection system for deflecting the beam transversely across the conveyer belt 29. The conductors are preferably of stainless steel and may be hollow to enable a cooling medium to be circulated therethrough. Corresponding ends 40, Fig. 3, of the conductors may be electrically connected to the envelope 13 and to each other while the opposite ends 39 are insulated from the envelope and connected across a high frequency oscillator 15, Fig. 1, and a source of cooling fluid 19. Alternatively, corresponding ends of the conductors may be connected to a hollow ring 41, Fig. 4, at diametrally opposed points thereof, while the opposite end 42 of one conductor is electrically connected to the envelope and the opposite end of the other is insulated from the envelope. The conductors are preferably energized with an alternating current having a frequency such that the distance between successive cycles of the longitudinal deflection on an irradiated material is of the order of the diameter of the electron beam, i.e. a frequency of the order of 1000 times the principal transverse scanning frequency. The frequencies of the longitudinal and transverse deflections may be non-harmonically related to one another so that the longitudinal deflection cycles of successive traces are out of phase. As shown, the flared region of the envelope is provided with strengthening fins 21, Fig. 1 and terminates in a thin titanium window 23 which is bowed inwards and is cooled by air from a compressed air source 25.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US693201A US2961561A (en) | 1957-10-29 | 1957-10-29 | Internal magnetic deflection system for electron beam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB834996A true GB834996A (en) | 1960-05-18 |
Family
ID=24783729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34306/58A Expired GB834996A (en) | 1957-10-29 | 1958-10-27 | Improvements in internal magnetic deflection system for electron beam generator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2961561A (en) |
| CH (1) | CH363727A (en) |
| DE (1) | DE1204342B (en) |
| FR (1) | FR1218460A (en) |
| GB (1) | GB834996A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL249741A (en) * | 1959-03-23 | |||
| US3217135A (en) * | 1961-12-29 | 1965-11-09 | Radiation Dynamics | Electron beam welding at atmospheric pressures |
| DE1764592B1 (en) * | 1968-07-01 | 1971-07-08 | High Voltage Engineering Corp | ELECTRON IRRADIATION DEVICE |
| WO1981000948A1 (en) * | 1979-09-28 | 1981-04-02 | M Svinin | Device for leading out charge-particle beam into atmosphere |
| DE2953877C2 (en) * | 1979-10-18 | 1985-01-03 | Gennadij Ivanovič Leningrad Razin | Device for deflecting a bundle of charged particles |
| US4293772A (en) * | 1980-03-31 | 1981-10-06 | Siemens Medical Laboratories, Inc. | Wobbling device for a charged particle accelerator |
| EP3110458A1 (en) * | 2014-02-25 | 2017-01-04 | Tetra Laval Holdings & Finance SA | Conditioning system for a sterilization device, a sterilization machine and a method of conditioning a sterilization device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR851941A (en) * | 1939-05-16 | 1940-01-18 | Materiel Telephonique | Cathode ray tubes and the like |
| NL73373C (en) * | 1945-06-23 | |||
| US2608669A (en) * | 1948-02-06 | 1952-08-26 | Marcel Wallace | Cathode-ray tube wavemeter |
| US2612623A (en) * | 1949-10-26 | 1952-09-30 | Raytheon Mfg Co | Anode structure for electron discharge devices |
| US2602751A (en) * | 1950-08-17 | 1952-07-08 | High Voltage Engineering Corp | Method for sterilizing substances or materials such as food and drugs |
| US2680815A (en) * | 1950-12-28 | 1954-06-08 | High Voltage Engineering Corp | Method of and apparatus for treating substances with high energy electrons |
| US2692355A (en) * | 1951-06-29 | 1954-10-19 | Gen Instrument Corp | Cathode-ray tube deflection yoke |
| US2741704A (en) * | 1953-06-22 | 1956-04-10 | High Voltage Engineering Corp | Irradiation method and apparatus |
-
1957
- 1957-10-29 US US693201A patent/US2961561A/en not_active Expired - Lifetime
-
1958
- 1958-10-09 DE DEG25471A patent/DE1204342B/en active Pending
- 1958-10-24 CH CH6539958A patent/CH363727A/en unknown
- 1958-10-27 GB GB34306/58A patent/GB834996A/en not_active Expired
- 1958-10-29 FR FR777785A patent/FR1218460A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2961561A (en) | 1960-11-22 |
| CH363727A (en) | 1962-08-15 |
| FR1218460A (en) | 1960-05-11 |
| DE1204342B (en) | 1965-11-04 |
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