Magnetic Domain Imaging System
AssigneeJEOL Ltd.
InventorTakeshi Tomita
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Abstract
A magnetic domain imaging system is offered which permits application of a strong magnetic field to a specimen. The imaging system includes a transmission electron microscope having an objective lens. The specimen that is magnetic in nature is placed in the upper polepiece of the objective lens. An electron beam transmitted through the specimen is imaged and displayed on a display device. A field application coil assembly for applying a magnetic field to the specimen and two deflection coil assemblies for bringing the beam deflected by the field applied to the specimen back to the optical axis are mounted in the upper polepiece.
Claims7
A magnetic domain imaging system having a transmission electron microscope including an objective lens having upper and lower polepieces, the imaging system being so designed that an electron beam transmitted through a magnetic specimen placed in the upper polepiece is imaged and displayed on a display device, said magnetic domain imaging system comprising:
- a field application coil assembly for applying a magnetic field to the specimen;
- and
- deflection coil assemblies for bringing the electron beam deflected by the field applied to the specimen back to an optical axis,
- wherein the field application coil assembly and the deflection coil assemblies are disposed within the upper polepiece of the objective lens.
Dependencies are inferred from the claim text.