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Mattauch-Herzog double-focusing mass spectrometer
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Figure 4: Arrangement of the electrostatic and magnetic sectors in the Mattauch-Herzog double-focusing mass spectrometer. The ions are deflected in opposite directions in the electrostatic and magnetic fields. The divergent monoenergetic beam contains two ion species of different mass-to-charge ratio. All ions are brought to a focus along the plane AB.
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Mattauch-Herzog double-focusing mass spectrometer

chemistry
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Figure 4: Arrangement of the electrostatic and magnetic sectors in the Mattauch-Herzog double-focusing mass spectrometer. The ions are deflected in opposite directions in the electrostatic and magnetic fields. The divergent monoenergetic beam contains two ion species of different mass-to-charge ratio. All ions are brought to a focus along the plane AB.
Figure 4: Arrangement of the electrostatic and magnetic sectors in the Mattauch-Herzog double-focusing mass spectrometer. The ions are deflected in opposite directions in the electrostatic and magnetic fields. The divergent monoenergetic beam contains two ion species of different mass-to-charge ratio. All ions are brought to a focus along the plane AB.

The Mattauch-Herzog double-focusing mass spectrometer is a type of mass spectroscope that uses a combination of electric and magnetic fields to analyze ions. This design, developed in West Germany, allows for high-resolution mass measurements and abundance analysis, capable of achieving resolutions up to 105.1

This instrument is effective even with ion beams that have a 5 percent energy spread and can be used with nearly any ion source. The resolved ion beams can be detected either electrically or using a photographic plate. The Mattauch-Herzog geometry focuses all masses along a line at the boundary of the second magnetic field. This design has been widely used in commercial instruments for general analytical work and precise mass measurements.1

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2 Britannica Sources
  1. mass spectrometry - Combined electric and magnetic field analysis
  2. mass spectrometry - Ion-velocity spectrometers

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