title: An electronic image drift compensator for electron microscopy.
abstract: Image drift frequently occurs when temperature-controlled specimen holders are used or when there is a malfunction of the electron microscope. A simple circuit is presented which supplies a noise-free linear ramp of increasing or decreasing current suitable for manual drift compensation. It has been tested extensively with several side-entry cold stages in a Philips EM420 electron microscope equipped with a low-dose kit. The compensator does not interfere with the use of the low-dose kit and requires no modifications to the microscope.
authors.affiliation: MRC Laboratory of Molecular Biology, Cambridge, UK.
authors.forename: D
authors.initials: D
authors.lastname: Cattermole
authors.forename: R
authors.initials: R
authors.lastname: Henderson
mesh_terms: D004553:Electric Conductivity; D008854:Microscopy, Electron / Q000379:methods*; D011199:Potentiometry