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Optimal K[alpha] XRF detection geometry of arsenic in skin using an extended fundamental parameter method
X-Ray Spectrometry, 08/19/09

Gherase MR et al. – In the new approach the primary fluorescence photons can travel in any direction which allows them to reach the detector if not absorbed or scattered. The derived XRF signal equation explicitly depends on the length of the collimator in front of the detector, the detector size, position and orientation. Optimal positions and orientations of the detector and collimator ensemble which maximize the XRF signal were found.

Exclusive Author Commentary
Mihai Raul Gherase , 08/19/09

This work underlines the importance of detection geometry for all X-ray Fluorescence (XRF) applications. In particular, future medical and biological applications of XRF concerning detection of trace elements in the human body, such as arsenic in skin, can use this work to determine optimal experimental parameters.

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