title: High-resolution scanning transmission electron microscope at Johns Hopkins.
abstract: The scanning transmission electron microscope constructed at Johns Hopkins follows the general layout of the first instrument at the University of Chicago. It is currently operating at 50 kV with a resolution of about 3 A. Its detector scheme consists of scintillation crystals coupled to photomultipliers in such a way as to eliminate introduction of unnecessary statistical noise. A unique alignment scheme utilizes the spherical aberration of the objective lens.
authors.affiliation: Department of Biophysics, The Johns Hopkins University, Baltimore, Maryland 21218.
authors.forename: J W
authors.initials: JW
authors.lastname: Wiggins
authors.forename: J A
authors.initials: JA
authors.lastname: Zubin
authors.forename: M
authors.initials: M
authors.lastname: Beer