XPS

Images of some of the samples I’ve tested:

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Looking at gold:

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The ABCs of the measurements I have performed…

A:

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B:

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C:

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F:

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G:

H:

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I:

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K:

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L:

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M:

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N:

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O:

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P:

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R:

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S:

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T:

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V:

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W:

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Y:

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Z: