Towards generalised diffraction integration software: neutron diffraction analysis in DIALS

Diffraction-geometry refinement in the DIALS framework

Rapid data collection and modern computing resources provide the opportunity to revisit the task of optimizing the model of diffraction geometry prior to integration. A comprehensive description is given of new software that builds upon established methods by performing a single global refinement procedure, utilizing a smoothly varying model of the crystal lattice where appropriate. This global...

Neutron diffraction analysis on FINEMET alloys

Neutron diffraction has been used to study in situ the nanocrystallization process of Fe73.5Cu1Nb3Si22.52xBx (x55, 9, and 12! amorphous alloys. Nanocrystallization results in a decrease of both the silicon content and the grain size of the Fe~Si! phase with increasing value of x. By comparing the radial distribution function peak areas with those predicted for ideal bcc and DO3 structure, it ca...

Neutron Diffraction Experiments

This ISEN award supported research toward improving the energy efficiency of actuators. The focused research objective was to develop next-generation shape memory alloy (SMA) models and structures, to demonstrate this new technology in targeted near-term applications on airplanes. Two research avenues were pursued to enable development of this new technology: 1) neutron diffraction experiments ...

Biological Neutron Diffraction

Neutron Diffraction: Applications in Environmental Issues

Maintaining and remediating the quality of water, air and soil, so that Earth will be able to sustainably support human population growth, is one of the great challenges of our generation. The scarcity of water, both in terms of quantity as well as quality, poses a significant threat to the man's well-being. Environmental technology is set to play a key role in the shaping of current environmen...