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Heritage Science
Fig. 6 | Heritage Science

Fig. 6

From: The non-destructive investigation of a late antique knob bow fibula (Bügelknopffibel) from Kaiseraugst/CH using Muon Induced X-ray Emission (MIXE)

Fig. 6

The prompt \(\mu\)-X ray spectrum from the knob bow fibula at a position 1: center of the bow; b position 2: side of the bow, not on the spiral side; c position 3: side of the bow towards the spiral; d position 4: the knob; e position 5: the foot; and f position 6: the spiral. Two different energy ranges have been shown for each position: 1200 to 2200 keV in the left columns and 3000 to 6100 keV in the right columns. The K-series lines of Cu, Zn, Sn, Pb and Fe are shown in brown, blue, green, purple, and black colors, respectively. The Fe signal is seen only in position 6

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