Abstract
SIKA, a high-flux cold-neutron triple-axis spectrometer at the OPAL reactor at the Australian Nuclear Science and Technology Organization, is equipped with a 13-blade analyser and position-sensitive detector. This multiplexing design endows SIKA high flexibility to run in both traditional triple-axis and multiplexing analyser modes. In this study, two different multiplexing modes on SIKA are simulated using Monte-Carlo ray-tracing methods. The simulation results demonstrate SIKA capabilities to work in these operational modes, especially, the multi-Q const-Ef mode. This capability was demonstrated by measuring the phonon dispersion of a Pb single-crystal sample with the multi-Q const-Ef mode on SIKA. Compared to the traditional and multi-analyser triple-axis spectrometers, multiplexing modes on SIKA combine the advantages of the high data-acquisition efficiency and flexibility to focus on local areas of interest in the (Q, w) space.
Connections
Explore this paper’s authors, topics and related work.
Building this map preview
BZPEER is loading the nearby papers, people, topics and institutions for this page.
Reviews 0
Write a review
No reviews yet.
Discussion 0
Add a comment
No comments yet.