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.
Source:
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