MJOLNIR: A Software Package for Multiplexing Neutron Spectrometers

TL;DR

MJOLNIR is a software package designed to manage, visualize, and analyze complex data from multiplexing neutron spectrometers, enhancing data processing capabilities for advanced neutron scattering experiments.

Contribution

The paper introduces MJOLNIR, a versatile software framework that handles complex data from multiplexing neutron spectrometers, enabling cross-facility collaboration and advanced data analysis.

Findings

Improves data handling for multiplexing spectrometers

Facilitates collaboration across neutron facilities

Supports advanced data fitting and modeling

Abstract

Novel multiplexing triple-axis neutron scattering spectrometers yield significant improvements of the common triple-axis instruments. While the planar scattering geometry keeps ensuring compatibility with complex sample environments, a simultaneous detection of scattered neutrons at various angles and energies leads to tremendous improvements in the data acquisition rate. Here we report on the software package MJOLNIR that we have developed to handle the resulting enhancement in data complexity. Using data from the new CAMEA spectrometer of the Swiss Spallation Neutron Source at the Paul Scherrer Institut, we show how the software reduces, visualises and treats observables measured on multiplexing spectrometers. The software package has been generalised to a uniformed framework, allowing for collaborations across multiplexing instruments at different facilities, further facilitating new developments in data treatment, such as fitting routines and modelling of multi-dimensional data.