Systems and methods for measuring magnetic fields produced within microscopes
AssigneeBoard of Regents, The University of Texas System
InventorsArturo Ponce-Pedraza, Miguel Jose Yacaman, John Eder Sanchez
Life of this patent
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Abstract
In some embodiments, a system for measuring magnetic fields produced within a microscope comprising an electromagnetic lens includes a sensor support element configured to be mounted to a distal end of an elongated support member that is configured to be inserted into the microscope, and a magnetic field sensor supported by the sensor support element, the magnetic field sensor being configured to sense magnetic fields at a position within the electron microscope at which specimens are imaged during operation of the microscope.
Claims10
A system for measuring the magnetic field produced by an electromagnetic lens within a microscope, the system comprising:
- a magnetic field sensor configured to sense magnetic fields generated by the electromagnetic lens of the microscope;
- a sensor support element that supports the magnetic field sensor;
- an elongated support member to which the sensor support element is mounted, the support member being configured to be inserted into a specimen port of the microscope and position the magnetic field sensor at a position within the microscope at which specimens are imaged;
- and
- a magnetometer that is in electrical communication with the magnetic field sensor.
A method for measuring the magnetic field produced by an electromagnetic lens within a microscope, the method comprising:
- mounting a magnetic field sensor to the distal end of an elongated support member;
- inserting the elongated support member into a specimen port of the microscope such that the magnetic field sensor is positioned within a high vacuum column of the microscope at a position at which a specimen can be positioned for imaging;
- exciting the electromagnetic lens of the microscope;
- and
- measuring magnetic fields within the electron microscope generated by excitation of the electromagnetic lens using the magnetic field sensor.
Dependencies are inferred from the claim text.