Patent ID: 7746471
Filing Date: 2010-06-29
Classification: G01N

Abstract:
1. A system for positioning a source of a beam of electromagnetic radiation and a detector thereof in relation to a sample to be investigated comprising: a source and detector of electromagnetic radiation and a sample; said system further comprising means for effecting relative translational motion between said source and detector of electromagnetic radiation and said sample in three orthogonally related dimensions with respect to a surface of said sample, which can be oriented in any plane in laboratory coordinates; said system further comprising means for effecting rotational motion of said source and detector of electromagnetic radiation about at least one axis; said system further comprising at least one electromagnetic beam intercepting angle-of-incidence changing system comprising elements which are easily functionally entered into the locus of the electromagnetic beam on both sides of said sample system, which at least one electromagnetic beam intercepting angle-of-incidence changing system serves to direct said electromagnetic beam onto substantially the same spot on the sample system as is the case where the said at least one electromagnetic beam intercepting angle-of-incidence changing system is not functionally present, but at an angle-of-incidence which is different than that when said at least one electromagnetic beam intercepting angle-of-incidence changing system is not functionally present, said at least one electromagnetic beam intercepting angle-of-incidence changing system not effecting, or requiring change of, the locus of the electromagnetic beams outside said at least one electromagnetic beam intercepting angle-of-incidence changing system, on either side of said means for supporting a sample system, hence does not require said material system investigating system to comprise multiple sources and detectors or the change of position of at least one selection from the group consisting of: said source of electromagnetic radiation; and said detector thereof; to effect change said angle-of-incidence.