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Microscope at the VU

Microscope at the VU. The samples. Sample 4:. Sample 5:. Sample 7: new wire. Good wire. “SEI” image: Secundary electrons Measure of amount of material. “COMPO” image: Primary electrons Measure of Z of material  dark spots = light element. Compare wire. Wire sample 7: new.

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Microscope at the VU

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  1. Microscope at the VU

  2. The samples

  3. Sample 4: Sample 5: Sample 7: new wire

  4. Good wire “SEI” image: • Secundary electrons • Measure of amount of material “COMPO” image: • Primary electrons • Measure of Z of material •  dark spots = light element

  5. Compare wire Wire sample 7: new Wire sample 5: damaged Wire sample 5: damaged SEI Dark spot = light element COMP

  6. EDS: new wire vs damaged wire

  7. Dark spot Opitcal SEI EDS COMPO Tungsten Calcium?

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