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:
Jun. 09, 2015
Filed:
Apr. 13, 2012
Lee Grodzins, Lexington, MA (US);
Jeffrey R. Schubert, Somerville, MA (US);
Omar Al-kofahi, Chelmsford, MA (US);
Peter J. Rothschild, Newton, MA (US);
Lee Grodzins, Lexington, MA (US);
Jeffrey R. Schubert, Somerville, MA (US);
Omar Al-Kofahi, Chelmsford, MA (US);
Peter J. Rothschild, Newton, MA (US);
American Science and Egineering, Inc., Billerica, MA (US);
Abstract
Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that the total beam fluence incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.