in mass spectrometry
The deflection of an ion beam as a result of the motion of the ions in a magnetic
field (magnetic sector). Generally the direction of motion of the ions is at right
angles to the direction of the magnetic field, and the motion is uniform.
PAC, 1991, 63, 1541
(Recommendations for nomenclature and symbolism for mass spectroscopy (including an
appendix of terms used in vacuum technology). (Recommendations 1991))
on page 1544