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Attachment: Figure 3


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time-of-flight mass spectrum of Ca-54. In addition to calcium there are also signals of isobaric isotopes of chromium and titan. Cr-54 and K-39 (outside of the range shown) with very well-known masses, were used for calibration.

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Figure: Frank Wienholtz

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Figure: Frank Wienholtz

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attachmentdata28122.jpg

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