Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8174487 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2015 | 9 Pages |
Abstract
A new type of multiplex technique for three axes neutron spectrometers has been realized and successfully commissioned at the PUMA spectrometer at FRM II. Consisting of eleven analyser-detector channels which can be configured individually, this technique is especially suitable for kinetic experiments where a single excitation spectrum is recorded as a function of time without the need to move the spectrometer. On a time-scale of seconds an entire spectrum can be recorded thus allowing users to monitor changes during fast kinetic processes in single shot experiments without the need for stroboscopic techniques. Moreover, the multianalyser system provides an efficient and rapid tool for mapping excitations in (Q,Ï)-space. The results of pilot experiments demonstrate the performance of this new technique and a user-friendly software is presented which assists users during their experiments.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Oleg Sobolev, Ron Hoffmann, Holger Gibhardt, Norbert Jünke, Andreas Knorr, Volker Meyer, Götz Eckold,