The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 1978
Filed:
Nov. 28, 1977
James T McKinney, Stillwater, MN (US);
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Abstract
An improved ion scattering spectrometer (ISS) in which a cylindrical mirror analyzer is provided and an ion gun for providing a beam of noble gas ions which are impinged upon and elastically scattered from a surface to be analyzed is axially positioned within the inner cylinder of the analyzer. A detector for ions passed through the analyzer is axially positioned proximate an energy resolving aperture located at the conjugate point of ions scattered from the sample to thereby detect ions having a narrow energy pass band. The analyzer has a substantially uniform response over a target area that is at least a thousand times the cross-sectional area of the ion beam impinged upon the target so that elemental imaging of the surface can be accomplished.