Neutron polarisation correction to triple-axis data with analytical derivations
Abstract
Polarised neutron scattering is the method of choice to study magnetism in condensed matter. Polarised neutrons are typically very low in flux, and complex experimental configurations further reduce the count rate. Neutron polarisation corrections would therefore be needed. Here we analytically derive formulae of the corrected partial differential scattering cross-sections. The analytical method is designed for the longitudinal polarisation analysis, and the correction generally holds for time-independent polarised neutrons with a triple-axis spectrometer. We then apply the correction to recent results of our experiment on YFeO. Although there is a difficulty with the experimental determination of inefficiency parameters of neutron spin polarisers and flippers, the correction appears to work properly.
Cite
@article{arxiv.2006.15758,
title = {Neutron polarisation correction to triple-axis data with analytical derivations},
author = {Yusuke Nambu and Mechthild Enderle and Tobias Weber and Kazuhisa Kakurai},
journal= {arXiv preprint arXiv:2006.15758},
year = {2023}
}
Comments
8 pages, 2 figures