Em

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EM

Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

Em

A unit of length used in printing. An em is one-sixth of an inch. It is also called a pica.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved
References in periodicals archive ?
The ions subsequently, are destabilized and ejected with 50% efficiency to the electron multiplier by a rapid ramping of the RF voltage applied to the central ring electrode.
The high performance 5905 MAGNUM electron multiplier is specifically designed for Thermo Finnigan Mass Spectrometer instruments.
The prototypical RGA consists of an open ion source, a quadrupole mass filter, and a Faraday cup ion detector that may or may not be enhanced by an electron multiplier. Recall that as gases enter an RGA, they become ionized in the ion source by energetic electrons from a heated filament wire.
The GC-MS was run with the electron multiplier set at 1600 eV and an injection volume of 1.5 [micro]L.
An electron multiplier behind the slit amplifies the electron signals.

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