I'm perplexed by the appearance of "striations" on this (113)- asymmetric reflection XRD topograph for the NIST 2000 sample. Both front and back! The topographs have been created by integrating all the intensity values through the Bragg domain for individual spatial pixel on the 2D real time detector. We have used the XRD rocking curve technique to probe and record the Bragg domain. The incident beam "foot print" on the specimen surface seems to be devoid of such striations. Additional background information may be found in the attached images and RG question.
Helpful suggestions will be deeply appreciated!
BTW I have not seen such striations from any other specimen yet :-)
https://www.researchgate.net/post/What_is_the_best_way_to_interpret_REAL_TIME_3D_X_Y_o-2TH_o_ph_ch_reciprocal_space_relative_intensity_data_from_HRXRD_rocking_curve_analyses
НЕТ, фото скребня не позволяет определить вид, не видно строение крючьев на хоботке
Oh! I see :-)
Russian humor in science? "NO, the photo of Acanthocephala does not allow to determine the species, the structure of the hooks on the proboscis is not visible"
доверяй, но проверяй
doveryay, no proveryay
https://www.flickr.com/photos/85210325@N04/10221987094/in/album-72157645018820696/
Is this the hint? The NIST 2000 specimen fell and broke in two. Subsequent efforts to duplicate the "striation" image were NOT successfull.I suspect there was some sort of a strain state that was altered when the specimen broke in two. I'll post images of one of the broken halves from that sample to illustrate this. Still an enigma!
- Badges
- Science method
- Similar topics
- Methodology
- Crystallography
- X-ray Diffraction