Figure 4.
The analyzer module of the double focusing mass spectrometer (DFMS) instrument, part of the Rosetta Orbiter Sensor for Ion and Neutral Analysis (ROSINA) experiment onboard the Rosetta spacecraft, consists of high‐ and low‐resolution entrance slits, an electrostatic analyzer followed by a magnetic sector, and a suite of “zoom” ion optics that together enable the instrument to achieve a mass resolving power higher than previous sector field mass spectrometer (SFMS) spaceflight instruments. Three distinct detectors support a 1010 total dynamic range. Image courtesy of the University of Bern