Superconductor imaging surface magnetometry
The presence of superconducting surfaces in the vicinity of current sources may be interpreted in terms of image theory. This concept has both experimental and theoretical practicality. Experimentally, sensing coils for magnetic detection, when placed near such surfaces, perform in a gradiometric fa...
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| Veröffentlicht in: | Review of Scientific Instruments 1995-07, Vol.66 (7), p.3777-3784 |
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| container_end_page | 3784 |
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| container_issue | 7 |
| container_start_page | 3777 |
| container_title | Review of Scientific Instruments |
| container_volume | 66 |
| creator | van Hulsteyn, David B. Petschek, Albert G. Flynn, Edward R. Overton, William C. |
| description | The presence of superconducting surfaces in the vicinity of current sources may be interpreted in terms of image theory. This concept has both experimental and theoretical practicality. Experimentally, sensing coils for magnetic detection, when placed near such surfaces, perform in a gradiometric fashion. In order to explain this effect explicitly, a theoretical treatment of the magnetic fields in the presence of superconducting surfaces and coils is presented. Expressions are derived for planar and spherical geometries that approximate practical experimental situations. These expressions may be used to predict the expected gradiometric response of a coil as a function of the positions of the source and coil relative to the surface. |
| doi_str_mv | 10.1063/1.1145437 |
| format | Article |
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This concept has both experimental and theoretical practicality. Experimentally, sensing coils for magnetic detection, when placed near such surfaces, perform in a gradiometric fashion. In order to explain this effect explicitly, a theoretical treatment of the magnetic fields in the presence of superconducting surfaces and coils is presented. Expressions are derived for planar and spherical geometries that approximate practical experimental situations. 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This concept has both experimental and theoretical practicality. Experimentally, sensing coils for magnetic detection, when placed near such surfaces, perform in a gradiometric fashion. In order to explain this effect explicitly, a theoretical treatment of the magnetic fields in the presence of superconducting surfaces and coils is presented. Expressions are derived for planar and spherical geometries that approximate practical experimental situations. These expressions may be used to predict the expected gradiometric response of a coil as a function of the positions of the source and coil relative to the surface.</abstract><cop>United States</cop><doi>10.1063/1.1145437</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of Scientific Instruments, 1995-07, Vol.66 (7), p.3777-3784 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_1145437 |
| source | AIP Digital Archive |
| subjects | DIAGNOSTIC TECHNIQUES MAGNETIC FIELDS MAGNETOMETERS PHYSICS RESPONSE FUNCTIONS SUPERCONDUCTORS SURFACES |
| title | Superconductor imaging surface magnetometry |
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