GB945651A - Device for the electron microscope presentation of magnetisable objects - Google Patents
Device for the electron microscope presentation of magnetisable objectsInfo
- Publication number
- GB945651A GB945651A GB8590/62A GB859062A GB945651A GB 945651 A GB945651 A GB 945651A GB 8590/62 A GB8590/62 A GB 8590/62A GB 859062 A GB859062 A GB 859062A GB 945651 A GB945651 A GB 945651A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electron
- electron beam
- presentation
- magnetic
- magnetic field
- 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
- 238000010894 electron beam technology Methods 0.000 abstract 4
- 230000003287 optical effect Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/266—Measurement of magnetic or electric fields in the object; Lorentzmicroscopy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/147—Arrangements for directing or deflecting the discharge along a desired path
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Electron Beam Exposure (AREA)
Abstract
945,651. Electron microscopes. SIEMENS & HALSKE A.G. March 6, 1962 [April 28, 1961], No. 8599/62. Heading H1D. A device for the electron microscopic presentation of magnetizable objects, in which a magnetic field B 11 , Fig. 4, whose magnitude and/or direction is preferably adjustable and which is directed at right angle to the electron beam, serves to magnetize the object, especially for the defocused presentation of submicroscopic details of magnetic structures, comprises an electron beam which enters the magnetic field B 11 at an angle to the optical axis S, the ray being deflected by the magnetic field in the direction of the optical axis so that the electron beam enters the electron lens practically parallel with the axis. Three separate magnetic fields are preferably provided, B 1 B 11 , B 111 , along the path of the beam and all of equal intensity, the extent l 11 , Fig. 6, of B 11 being twice that of the extents l 1 , l 111 of B 1 and B 111 . In one form, Fig. 4, the magnetic fields are created by a pair of E- shaped magnets energized by suitably wound coils, either a pair of coils one on each of the middle arms as shown, or by three pairs of coils wound on each arm. A detailed mathematical analysis of the path of an electron is given, and an arrangement is described wherein the whole of the magnetic structure may be tilted about an axis perpendicular to the electron beam.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES73743A DE1144856B (en) | 1961-04-28 | 1961-04-28 | Method for the electron microscopic imaging of magnetizable objects and arrangement for carrying out the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB945651A true GB945651A (en) | 1964-01-08 |
Family
ID=7504151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8590/62A Expired GB945651A (en) | 1961-04-28 | 1962-03-06 | Device for the electron microscope presentation of magnetisable objects |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3182195A (en) |
| DE (1) | DE1144856B (en) |
| GB (1) | GB945651A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312858A (en) * | 1961-08-31 | 1967-04-04 | Heraeus Gmbh W C | Deflecting system for charge carrier beams |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2460609A (en) * | 1946-01-24 | 1949-02-01 | Rca Corp | Beam aligning apparatus |
| US2614223A (en) * | 1949-08-03 | 1952-10-14 | Rca Corp | Method of and apparatus for making electron-micrographs of opaque metallographic specimens |
| US2581487A (en) * | 1950-03-01 | 1952-01-08 | Rca Corp | Color television reproduction tube |
| US2824987A (en) * | 1952-05-12 | 1958-02-25 | Leitz Ernst Gmbh | Electron optical elements and systems equivalent to light optical prisms for charge carriers in discharge vessels |
| US2926254A (en) * | 1955-08-11 | 1960-02-23 | Vickers Electrical Co Ltd | Electron lenses |
-
1961
- 1961-04-28 DE DES73743A patent/DE1144856B/en active Pending
-
1962
- 1962-03-06 GB GB8590/62A patent/GB945651A/en not_active Expired
- 1962-04-23 US US189472A patent/US3182195A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3182195A (en) | 1965-05-04 |
| DE1144856B (en) | 1963-03-07 |
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