This is an alternative method of producing a
momentum (mass) spectrum in magnetic deflection instruments by varying the accelerating voltage.
This scan can also be used, in conjunction with a fixed radial electric field, to
produce an
ion kinetic energy spectrum.
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 1550