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Moellenstedt analyzer

Moellenstedt analyzer

One of the in-column type energy filters, which is installed between the intermediate and projector lenses in a TEM. In the "Moellenstedt analyzer," lens aberration is used to get energy dispersion, instead of deflection by a magnetic field or an electric field. The initial Moellenstedt analyzer used an electrostatic lens, but the modern Moellenstedt analyzer adopts a magnetic field lens for a 100 kV or higher voltage TEM.

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