Tomographic measurement of buried interface roughness

Computed Tomographic measurement of distal femor rotation in Iranian population

  Background: Proper rotation of components in total knee arthroplasty (TKA) will largely affect the postoperative outcome. Ethnical variation may affect rotational profile. We aimed to evaluate distal femur rotation in Iranian population using transepicondylar axes.   Methods : From a total of 450 knee CT scans and via consecutive sampling, 150 qualified subjects with normal lower extremities ...

Measuring the roughness of buried interfaces by sputter depth profiling.

We report results of high-resolution sputter depth profiling of an alternating MgO/ZnO nanolayer stack grown by atomic layer deposition (ALD) of ≈5.5 nm per layer. We used an improved dual beam time-of-flight secondary ion mass spectrometer to measure (24)Mg(+) and (64)Zn(+) intensities as a function of sample depth. Analysis of depth profiles by the mixing-roughness-information model yields a ...

Absolute measurement of surface roughness.

In an interferometer which uses a reference surface, the measured surface heights correspond to the difference between the test and reference surfaces. To accurately determine the rms roughness of supersmooth surfaces, the effects of the reference surface roughness need to be removed. One technique for doing this involves averaging a number of uncorrelated measurements of a mirror to generate a...

Friction & Roughness Measurement of Elastomer

Grazing Incidence X-ray Measurement of Interface Roughness in Sputtered Cu/Co Multilayers

We report grazing incidence X-ray scattering and high angle X-ray diffraction measurements of the structure of sputtered Cu/Co multilayers. Compared with structures grown by molecular beam epitaxy (MBE) the roughness at the Cu/Co interfaces has little conformality and is almost uncorrelated between the bottom and the top. The lateral correlation length is short in comparison with the MBE materi...