We developed a transportable micro‐XRF (µ‐XRF) spectrometer using a polycapillary X‐ray focusing half lens, which was placed between the sample and the detector. The total weight of the developed spectrometer was about 2 kg; its dimensions were 18(W) × 26(D) × 40(H) cm. The spatial resolution of the spectrometer with the half lens of a working (focal) distance of 30 mm was 171 µm at Fe Kα, which was...
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