Abstract: An x-ray fluorescence (XRF) device and a method for using the same to analyze a sample are described. The EMRXG source of the XRF device has a configuration that allows a greater amount of EMRXG to impinge on the sample being analyzed. The x-ray detector of the XRF device has a configuration that allows a greater amount of x-rays emitted by the sample to impinge on the detector. With such a configuration, the size and cost of the x-ray fluorescence device decreases. As well, fewer EMRXG are needed from the EMRXG source because of the greater efficiency and an exempt EMRXG source that is exempt from radioactivity licensing requirements can be used.

Abstract: Apparatus and methods in which one or more elemental taggants that are intrinsically located—or extrinsically placed—in an object are detected by x-ray fluorescence analysis to identify or track/trace the object or its point of manufacture, as well as to establish the origin of objects and their authenticity. The taggant is manufactured as part of the object or the taggant is placed into a coating, packaging, label, or otherwise embedded within or onto the object for the purpose of later verifying the presence or absence of these elements by x-ray fluorescence to determine the unique elemental composition of the taggant within the respective object. The apparatus and methods can used in combination with, in place or, or in additional to current anti-counterfeiting technologies.

Abstract: Apparatus and methods for providing x-rays to electronic devices such as portable electronic devices for x-ray fluorescence analysis are described. The apparatus includes a portable XRF device containing an x-ray source and an x-ray detector that are proximate one another, e.g., within the same housing. The x-ray source is shielded so that x-rays that could potentially interfere with the operation of the x-ray detector are reduced or eliminated.

Abstract: Apparatus and methods in which one or more taggants that are intrinsically located—or extrinsically placed—in an object, such as a personal identification device like a badge. The taggants are detected by x-ray fluorescence analysis to identify or verify the object or its point of manufacture. The taggants are manufactured as part of the article or the taggant is placed into a coating, label, or otherwise embedded within the object for the purpose of later verifying the presence or absence of these elements by x-ray fluorescence, thus determining the unique elemental composition of the taggant within the object.

Abstract: An apparatus and method in which one or more taggants that are intrinsically located—or extrinsically placed—in an article or product, such as plastic. The taggants are detected by x-ray fluorescence analysis to identify or verify the article or its point of manufacture. The taggants are manufactured as part of the article or the taggant is placed into a coating, label, or otherwise embedded within the article for the purpose of later verifying the presence or absence of these elements by x-ray fluorescence, thus determining the unique elemental composition of the taggant within the article.