electromagnetic lens

electromagnetic lens

[i¦lek·trō·mag′ned·ik ′lenz]
(electronics)
An electron lens in which electron beams are focused by an electromagnetic field.
References in periodicals archive ?
A special electromagnetic lens system ensures that the secondary ions maintain the spatial relationships they had in the sample surface, and a component known as a charge-coupled device detects and digitizes the spatial pattern of the speeding ions.

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