linked scan at constant b/e true MS:1000330 OBSOLETE A linked scan at constant B/E may be performed on a sector mass spectrometer that incorporates at least one magnetic sector plus one electric sector. The magnetic field B and the electric field E are scanned simultaneously while the accelerating voltage V is held constant, so as to maintain the ratio of the two fields constant. This linked scan may record a product ion spectrum of dissociation or other reactions occurring in a field free region preceding the two sectors. This child of the former purgatory term linked scan was made obsolete. MS