Unformatted text preview: An increasing flatness of the tubes is predicted for decreasing tube diameter. Also increasing flatness of the tubes is predicted for an increasing distance between the tip of the microscope and the sample. From my data and the graph of the “plot profile” it is clear to see that this tube is single-walled. My reasoning is that the gray scale is linear in a positive direction until it peaks, where it then drops linearly as well. This proves that there are no layers. If layers were present then the grayscale line would look like a staircase due to sudden changes in grayscale when the scanning tip passed over it. Instead there is a smooth incline and decline. For example:...
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- Spring '07
- 6 nm, 21 microns, 0006 microns, 8.25 microns