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:
Feb. 06, 2001
Filed:
Jun. 24, 1999
Michael P. Appleby, Charlottesville, VA (US);
Joseph A. Buturlia, West Boxford, MA (US);
Iain Fraser, Holliston, MA (US);
Robert F. Lynch, Newburyport, MA (US);
Thermo Electron Corp., Waltham, MA (US);
Abstract
A focused radiation collimator for collimating radiation emitted from a radiation point source located at a substantially known focal distance from the collimator is disclosed. In one embodiment of the disclosed collimator, the collimator is formed by at least two collimator layer groups, aligned, stacked and bonded together immediately adjacent to one another. Each of the collimator layer groups have a plurality of layer group passages arranged there through in a predetermined pattern which is unique to the layer group but which, with the passages of the other collimator layer group in the aligned stack, additively form a plurality of collimator through channels which are substantially aimed at the radiation point source. Each collimating layer group is formed by at least two substantially identical radiation absorbing layers, aligned, stacked and bonded together immediately adjacent to one another. Each of the substantially identical radiation absorbing layers have a plurality of openings arranged there through in substantially the same predetermined pattern which, with the plurality of openings of the other radiation absorbing layer in the aligned stack, additively form the layer group passages. High aspect ratio collimators having very small diameter through channels can be efficiently made in accordance with the teachings of the disclosure.