Stainless Steel Foil SEM Images (10/24/02)

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Images are of the SS foil that was removed from the tail end of Sample A of the Berkeley cabling run. No tears/holes/punchthrough were found anywhere on the foil.

The foil was cleaned with acetone in a sonic cleaner for 5 minutes.

Backscattered Electron Images are on the left, Secondary Electron Images are on the right.

Full Width, BSE

Backscattered Electron Image of the full width of the foil. The thin edge of the cable was on the left side.

Full Width, SEI

 

Secondary Electron Image of the full width of the foil. The thin edge of the cable was on the left side.

Thick Edge, BSE

 

Backscattered Electron Image of the thick cable ege side of the foil.

Thick Edge, SEI

 

Secondary Electron Image of the thick cable ege side of the foil.

Thin Edge, BSE

 

Backscattered Electron Image of the thin cable ege side of the foil.

Thin Edge, SEI

 

Secondary Electron Image of the thin cable ege side of the foil.

Thin Edge, BSE

 

Same as above, zoomed in by ~ 3.

Thin Edge, SEI

 

Same as above, zoomed in by ~ 3.

Thin Edge, BSE

 

Same as above, zoomed in by 9. The image is from the center of the first dimple in.

Thin Edge, SEI

 

Same as above, zoomed in by 9. The image is from the center of the first dimple in.
 

These images were taken after cleaning the foil with a 10% nitric acid solution. The foil surface is much cleaner now. All Images are Secondary Electron Images. The lower row is with the foil rotated by 45 degrees out of the horizontal plane, when looking at the SEM column from the front of the instrument.

Entire Foil

Image of the entire width of the foil. Note that the crenelations are deeper on the left (thin cable edge) than on the right (thick cable edge).

Thin Edge

Image of the first 2-3 crenelations on the thin edge of the foil.

Thin Edge

Image of the first crenelation on the thin edge. The surface in the center appears rougher than elsewhere.

Entire Foil at 45 degree angle

The foil was rotated by 45 degrees for this image. The thin cable edge is again on the left.

Thin Edge at 45 degrees

The first 3-4 crenelations on the thin edge at 45 degrees. Again, no tears in the foil

Thick Edge at 45 degrees

The first few crenelations on the thick edge at 45 degrees. The crenelations are smaller than on the thin edge.

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This page was last updated on Monday, July 28, 2003.