Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.These came out at theĢ × 10 −5 level, which is a significant improvement compared to previous results from fiber-optic coupled CCD detectors. The results were validated by checking the deviatoric strains in a silicon crystal. By looking at smooth powder rings that were recorded after moving the detector around, the module geometry could be measured with 200 nm precision. Commercial detectors are produced with modules aligned to more than one pixel, but still not quite perfect compared to fitted peak positions. ![]() To get good strain data, however, you need very precise pixel positions in order to compute scattering angles. ![]() CdTe-based pixel detectors have a narrow point spread, and so, they are ideal for measuring strains using high energy X-ray diffraction.
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